Best Underwater Strobes: Our Top Picks for 2026

Sea & Sea's upgrade from the YS-D3 II 'lightening', the YS-D3 Duo's feature a re-engineered and more sensitive optical sensor for more effective TTL as well as a dual RC circuit for accurate exposures with OM System branded cameras. Nirupam Nigam got hold of a pair of Sea & Sea YS-D3 Duo strobes and took them out to Anacapa Island and put them through some rigorous testing. He found these updated strobes to be a significant refinement of the YS-D3 line, suggesting that Sea & Sea may have "perfected their TTL engineering" with this release. 

Together with improved recycle times and cooler colors, he was particularly excited about the introduction of a dedicated RC mode, which provides highly accurate automatic exposures for OM System/Olympus users. He tested the RC mode specifically with the Olympus TG-6 and paired the strobes with the Canon R100 to evaluate their performance across different camera systems.

For photographers looking for new strobes, Nirupam emphasizes the following specs that set the YS-D3 Duo apart:

Performance & Power

• Guide Number: 33 (Land), providing enough power for both wide-angle and macro shots.

• Recycle Time: Exceptionally fast at 0.6 seconds at half power, with virtually no recycle time at quarter power or below.

• Beam Quality: Features an aspherical toroidal lens for even light distribution and a color temperature of 5800K (5500K with diffuser).

Technical Capabilities

• RC Mode: Specifically engineered for OM System (TG-7, etc.) cameras for accurate auto-exposures.

• Improved Optical Sensor: Increased sensitivity for better TTL accuracy and compatibility with low-powered LED triggers (like those from Nauticam).

• Versatile Modes: Includes DS-TTL II, Slave TTL, RC mode, and Manual modes.

Build & Ergonomics

• Buoyancy: Nearly neutral (-20g), making it highly maneuverable underwater and ideal for travel.

• User Interface: Large, tactile dials designed for use with thick gloves and audible "ready" beeps that are louder than previous versions.

• Battery Power: Uses 4x AA batteries (Eneloop Pro recommended), offering roughly 220 flashes per charge.

Nuripam, one of the leading experts at Bluewater Photo, had the unique opportunity to to beone of the first people to test the YS-D130R underwater. He took them to the Pacific Northwest, diving in deep, dark, and cold conditions. Using a Nikon Z8 in a Marelux housing, he pushed the strobe's limits with wide-angle subjects like wolf eels, as well as some incredible macro, and cold-water reefs to see how the circular flash tube handled coverage and color. Initially he was apprenhensive, based on spec's but after through testing he was sold on these new strobes.

Basic Specs: The Sea & Sea YS-D130R strobe moves to a circular flash tube rated at 130 Ws, aiming for smoother, more even edge-to-edge illumination than twin-tube designs. Sea & Sea lists four shooting modes and compatibility with OM SYSTEM’s Wireless RC Flash System alongside DS-TTL and full manual—good coverage whether you’re running fiber-optic TTL, RC control on OM bodies, or classic manual power steps. Headline specs include a native beam of ~80×82° (about 102×102° with the diffuser), daylight-balanced ~5600 K color, ~0.8 s full-power recycle with the Li-ion pack, a 100 m depth rating, and dimensions of 98 × 110 × 157 mm at 715 g on land. In the box you can expect a diffuser, red filter, AA battery holder, and a strobe ball base; the “Pro” package adds Sea & Sea’s SB-L02 Li-ion battery and dual USB charger. Weight in water is listed around 30–50 g (slightly negative), depending on battery type.

From his testing underwater, he highlighted the following improves features:

• Circular Flash Tube: It produces a beautiful, even 102-degree beam (with diffuser) that minimizes hotspots, reminding him of the quality seen in the Ikelite DS230.

• "Lightning" Recycle Speed: With the Li-ion battery, the 0.8-second recycle time is incredibly consistent, even during 10 fps bursts at half power.

• Tactile Controls: The redesigned power knobs are a dream for cold-water diving; they are much easier to manipulate with thick gloves than previous models.

• LED Screen: He was overly excited about the new LED screen and the info supplied on it, especially knowing exact battery levels before diving.

• Dual Power Versatility: While the Li-ion battery offers peak performance, the ability to swap in AA batteries as a backup is a lifesaver for remote travel.

From his testing he picked up on some downsides:

• Overheating Issues: At full power, the strobe will trigger an overheating warning and lock out for 10–15 seconds after about four consecutive shots. This can be overcome by powering down the strobe by half a stop, which prevents the overheating issue.

• No Sync Cord Support: Sea & Sea, like many other strobe manufacturers, has moved away from electrical sync cords; this strobe is strictly Fiber Optic only.

• Size: It is slightly larger than the previous YS-D3 Duo, though the performance trade-off is generally worth it

Bottom line: The YS-D130R is a professional-grade tool designed for wide-angle shooters who prioritize beam quality and rapid-fire consistency (can also be used by macro shooters with great effect). While the overheating at full power requires some tactical shooting (dropping power by half a stop), its performance in demanding conditions makes it a worthy successor to the Sea & Sea legacy. Are you looking to upgrade from a specific strobe model, or is this your first high-end underwater lighting setup?

One of our most recommended strobes for 2025, the Marelux Apollo III 2.0 Underwater Strobe, offers a guide number of 44 (ISO 100, on land) and supports TTL, Olympus RC, HSS, and MTL modes. The Apollo III 2.0 features a beam angle of 110°, which can be expanded to 140° with the included dome diffuser. Its color temperature is 6200K, adjustable to 5500K when using the diffuser.

This strobe supports both fiber optic and wireless triggering. The wireless system, known as Marelux Lumilink 2.0, utilizes two fisheye sensors with a 160° coverage angle. In optimal conditions, wireless triggering is reliable up to 10 meters underwater. But make sure you don't have anything blocking the sensor - as we learned during our tests! The strobe operates on three 18650 lithium batteries, providing an incredible 800 full-power flashes per charge. The full-power recycle time is 0.6 seconds. This recycle time is the fastest on the market at full power which is why we consider the Apollo III to be the world's highest performing strobe.

Based on these exciting features, it was without doubt that Nirupam would get his hands on a pair and take them to test underwater. He describes the Marelux Apollo III (the "2.0" version is a refinement of the original powerhouse design rather than a total overhaul) as a high-performance tool that effectively removes many of the compromises traditionally found in underwater lighting. He found that the strobe's combination of raw power and rapid recovery makes it a top-tier choice for both fast-action wide-angle and detail-oriented macro photography.

From comprehensive testing he summarised the key features as being:

• Exceptional Power & Speed: With a guide number of 44, the strobe provides enough output to counteract harsh ambient light in shallow water. More impressively, it maintains a 0.6-second recycle time at full power, allowing for consistent burst shooting that "almost felt like overkill" for typical subjects.

• Innovative Flash Design: The unique triangular triple flash tube provides an even light distribution without hot spots, even when used without diffusers.

• Battery Longevity: Powered by three 18650H batteries, the strobe lasted through two full days of intensive shooting (eight dives), totaling roughly 1,000 flashes.

• Versatile Triggering: The unit supports a wide array of modes, including TTL, RC TTL (for Olympus), HSS (High-Speed Sync), and a unique wireless triggering option via the Lumilink 2.0 optical trigger.

• Build Quality: The anodized aluminum body is durable, and the oversized control knobs are highly praised for being easy to manipulate while wearing thick gloves.

With an impressive list of positives, it was difficult to find an con's to these strobes, but below are some:

• Bulk and Weight: Despite being relatively compact for its power class, it remains a large strobe (960g). While the included neoprene covers provide some buoyancy, Nigam still recommends using floats to manage the weight in-water.

• Battery Specificity: The unit requires specific 18650H batteries, meaning users must ensure they purchase the correct high-discharge variant for the strobe to function as intended.

Conclusion: He concludes that the Apollo III is likely the highest-performing strobe currently on the market, packed with features, capabilites and power, offering "uncompromising" performance for photographers who need speed and power in a rugged package.

• Guide Number of 44 (tested on land
• Beam angle of 110°
• TTL, HSS & RC compatible UW strobe
• Full power recycle time 0.6 second
• 2 aiming light colors，250 lumen on white, 300 lumen on red
• Special designed MTL mode, support continuous flashes

The Marelux Apollo S is an underwater strobe designed by Marelux and depth‑rated to 100 m. The Apollo  S supports TTL, HSS, RC TTL, and a proprietary MTL mode for continuous multi‑flash exposure; triggering can occur via fiber optic port or Marelux’s encrypted wireless system (Lumilink 2.0) using two fisheye sensor ports with 160° coverage. It is our pick for the best all-around strobe for the every day photo shooter. The Apollo S achieves a full‑power recycle time of approximately 0.9 seconds, and provides about 800 full‑power flashes per charge using two 18650 lithium‑ion batteries housed in a waterproof compartment. 

Nirupam conducted a multi-month field test along the Pacific Coast of the United States. His testing conditions varied greatly, pushing the strobes to see how far they could go under various conditons, and how they would perform when pushed to the limit. 

Nirupam identified several standout features that set the Apollo S apart from its competitors:

• Versatility in Modes: He determined HSS as a rare find in mid-range strobes, making it significantly easier to capture black backgrounds and freeze action.

• Recycle Speed: The 0.9-second recycle time was a major highlight, allowing him to shoot high-speed bursts (10-30 fps) without losing exposure consistency, a rare commodity in such a compact strobe.

• The Marelux "Ecosystem": The ability to use wireless triggering and specialized accessories like the SOFT Lite Snoot and Lumilink 2.0, makes it a "creative photographer's dream."

• Ergonomics: With glow-in-the-dark back panel and large, tactile knobs that are easy to operate even while wearing thick cold-water gloves, this compact strobe was a winner even on cold water environments where gloves are a must, and water sare often dark and murky.

Despite being impressed with it's high performance, he did note a few minor drawbacks:

• No Sleep Mode: The strobe lacks an automatic sleep function; if accidentally left on between dives, the battery will drain.

• No Modeling Light: Unlike some competitors, it does not feature a built-in modeling light (though the reviewer prefers using a separate focus light to avoid backscatter).

• Wide Angle Performance: despite advertising a GN36, these strobes are probably not powerful enough for wide angle work under bright conditions.

• Maximum Guide Number 36 (on land)
• 0.9 second recycle time at full power
• Beam angle of 110 degrees (120 degrees with normal diffusers, and 140 degrees with dome diffusers)
• Support for TTL, RC, HSS, MTL, wireless triggering (The TTL, HSS, and RC modes require compatible flash triggers)
• Strobe has 2 fisheye wireless signal sensor units - sensor coverage is 160 °
• Full power flash: around 800 times
• Wireless trigger supports M, MTL, HSS. (TTL, RC needs fiber)
• Temp 6200k
• With dome diffuser, scattering angle 120-140 °, Temp 5500k
• Fiber optic trigger port
• Batteries: 2x 18650H batteries
• Max diameter 70mm, length of main body 140mm, full length including knobs 160mm
• Weight on land: 720 grams (without battery, with ball mount), 813 grams with 2x18650 batteries (with ball mount)
• Weight in water: 150 grams (including 2x18650 batteries, including ball mount). The weight after putting on the buoyancy suit is 50 grams
• Waterproof Depth : 100m

The Ikelite DS230 is 33% (213W) more powerful than its legacy siblings. The controls are larger and taller for easier power adjustment, even while wearing thick gloves. Click-stops at each power setting and a limited sweep allow you to quickly jump between TTL, full power and the lowest manual power setting without taking your eyes off your subject. The DS230 also uses new circuitry which makes the recycle time ultra fast! A new circular xenon flashtube produces a perfectly gradated beam pattern and warm color temperature. Warmer color temperatures help produce bluer backgrounds after post production white balance corrections. You can also use older batteries (for the DS 160 and 161) with the new DS 230 strobe as it's the same battery pack - making at an easy upgrade!

Both the Ikelite DS230 and the Ikelite DS232 have the same strobe capabilities, with the only difference being with the video light vs modelling lights options. The Ikelite DS230 has a 205 Lumen LED Spot light, while the Ikelite DS232 has a 2500 lumen video light in the center of the ring flash.

We recommend the Ikelite DS 230 and DS 232 to photographers who need the highest quality beam for wide ange photography, compatable with some the best TTL converts (automatic strobe power) from Ikelite on the market. Ikelite converters product particularly accurate exposures because they transmit a cleaner signal via electronic sync cord. 

• Circular flash tube - output is 213 Watts
• Wide beam angle of 120°
• DS230 - 213Ws Strobe with 205 Lumen LED Spot light
• Fast Recycle Time - 1.2 sec or faster
• Smaller than the Ikelite DS 160 Mark II!

The Seacam Seaflash 160 Underwater Strobe is considered to be the "Rolls Royce" of underwater strobes with high end finishes and impressive specifications.

The strobe offers a power output of 160 Ws and a color temperature of 4500K. The Seaflash 160 supports multiple exposure modes, including Canon e-TTL, Nikon i-TTL, Dual TTL, Film TTL, and manual power adjustment in 14 steps from 1/1 to 1/64. One of the strobes standout features is the digital control system, whereby the power output of the strobe is controlled digitally and more accurately than TTL. The Seacam Seaflash 160 has a beam angle of 130°, providing wide coverage for underwater photography. It delivers approximately 250 flashes at maximum output on a single battery, with a recycle time ranging from 0.1 to 2.7 seconds, depending on power settings. The strobe can be triggered using fiber optics or electronic cable.

The unit includes a two-stage pilot light with 250 lumens and a 10° beam angle, adjustable automatically or manually. It also offers high-speed synchronization up to 1/8000 and a stroboscopic mode with 2–15 selectable flashes. Physically, the strobe measures 190mm in length and 100mm in diameter, weighing 1.3 kg on land and approximately 50 grams underwater. It operates at depths up to 80 meters.

• Nikon i/TTL, Canon e/TTL, dual TTL, film TTL and manual power control
• Beam Angle: 130°
• Manual setting in 14 steps from 1/1 to 1/64
• High speed synchronization of up to 1/8000
• 250 flashes at maximum output
• Recycle time 0.1 -2.7 sec.
• Power 160 Ws / 4500 K°, Underwater guide number 15 at 100 ISO / 1m full power (Topside GN=45)

The Scubalamp D-Pro is SUPE's flagship underwater strobe, an affordable strobe that provides underwater photographers with a powerful output option (GN #30), ultra-fast recycle times (0.1-1.1s), and a more than sufficient wide beam angle of 150 degrees. The SUPE Scubalamp D33 battery pack includes 3 x 18650 Lithium batteries that offer 500 flashes at full power, and 3000 flashes on the lowest power setting, allowing for about 6 dives without having to change or charge the batteries. It also offers a focus light of 500 lumens to assist with your macro photography.

If you want value for money, there is no better strobe out there.

• Maximum Guide Number 30 (on land, IOS100)
• Circular flash tube - output is 160 Watts
• Wide beam angle of 150°
• Power output Capacity : 500 flashes at full power, 3000 flashes at 1st mode
• Recycle time: 0.1s -1.1s. seconds at full power

The newly released Ikelite RC165 and Ikelite DS165 strobes are professional-grade underwater strobes engineered to deliver consistent, daylight-balanced illumination for underwater photography. Both models offer 160 Ws of flash output, a 120° beam angle, and a color temperature of 5000 K to accurately render reef life, models, and wide-angle scenes.

RC165 Underwater Strobe

The RC165 features an integrated fiber-optic triggering port (for use with non-Ikelite housings), supporting TTL firing via optical transmitters and manual triggering via pre‑flash or slave signals. This eliminates the need for an electrical sync cord and reduces mechanical seals.

Included with the RC165 are the smart charger, NiMH battery pack, battery cover, a universal 1″ ball mount, and O-ring sealed electronics—identical to the DS165 except for trigger method.

DS165 Underwater Strobe

The DS165, in contrast, uses Ikelite’s electrical bulkhead (ICS‑5) for triggering. This enables direct connection to Ikelite TTL converters, sync cables, and a variety of electrical accessories compatible with legacy Ikelite systems (and other housing manufacturers with the right adapters). 

It shares all other specifications with the RC165: 160 Ws output, 120° beam, 5000 K color, NiMH power, 205‑lumen aiming light, similar form factor, controls, and environmental ratings

Power output: 160 watt‑seconds (160 Ws), with similar max‑burst performance

Beam coverage: Ultra‑wide ~120° without needing a diffuser

Color temperature: 5000 K (daylight-balanced)

Recycle time: Approximately 0.1–1.2 seconds depending on power setting

Battery: Rechargeable NiMH pack (~7.2 V, ~3300 mAh), airline-safe and long-lived

Depth rating: 100 meters (330 feet)

Weight & dimensions: ~1.2 kg (2.7 lb) with battery; ~91 mm diameter × 183 mm length (~3.6″ × 7.2″)

Modeling/aiming light: 205‑lumen spot LED to assist composition and focusing

Controls: Manual adjustment across 10 stops in ½‑stop increments; large tactile dials operable with gloves and slide lock to prevent accidental changes

Warranty & build: Made in USA from ABS‑PC blend, corrosion-resistant and backed by a two‑year warranty

The Kraken KS160 is an underwater strobe light designed for professional and advanced-diver underwater photography. It delivers 160 Ws of power via a circular flash tube and produces a 120° beam angle without diffuser, with a 5500 K color temperature suitable for accurate color reproduction in most environments.

Powered by a rechargeable lithium‑ion battery pack with USB‑C charging, the KS160 supports approximately 400 full‑power flashes per charge, and substantially more in lower-power settings, with a full-power recycle time of ~1.6 seconds. The strobe is depth-rated to 100 m (330 ft) and weighs about 1210 g on land and 300 g underwater, making it reasonably compact for its output class.

The KS160 accommodates both fiber-optic triggering and electronic sync (Sea & Sea 5-pin), and offers manual and slave modes (no TTL) for triggering flexibility.

Ergonomic design elements include a rotating OLED screen that displays remaining flashes and mode, a 500-lumen LED focus light, diffusers for beam controland an optional float collars for neutral buoyancy.

Among underwater strobes, the Kraken KS160 is considered one of the best underwater strobes for users seeking a high-powered strobe with robust battery life and adaptability across wide-angle and macro situations. While it lacks TTL functionality, its high output, broad compatibility, and rugged design make it competitive with strobes such as sea & sea strobes, marelux strobe systems, and other units in the kraken underwater lighting lineup.

• 160 Ws of output at highest power
• 400 shots per charge at full power
• 120 degree beam angle without diffusersA 5500K color temperature
• Circular flash tube
• 1.6 second recycle time at full power
• 500 lumen LED modeling light
• No TTL
• 5 pin sync and fiber optic strobe triggering
• Slave mode with a slave sensor
• Dedicated battery pack (2x 21700 with USB-C charger
• Anodized aluminum construction
• Depth rating: 300 ft (100 meters)
• Dimensions: 3.3" x 3.9" x 7.6"
• Weight: 1210g in air and 300 grams underwater

The Isotta RED64 Underwater Strobe is a high-quality lighting tool designed specifically for underwater photographers. With an incredible guide number of 64 and a powerful output of 230Ws, it ensures excellent illumination even in challenging underwater environments. The strobe features a 5300K color temperature that closely matches natural sunlight, providing accurate color reproduction for vivid and true-to-life photos.

This underwater strobe is built to integrate seamlessly with Isotta housings, offering a robust and reliable solution for divers and photographers. It supports multiple power settings, have a 10 step adjustment, which allows users to fine-tune their lighting to suit different shooting conditions, whether for wide-angle or macro photography. The user-friendly controls make it easy to adjust settings, even in complex underwater environments.

Based on in-field reports, the  RED64 shines in both wide-angle and macro photography, making it a versatile tool. The ergonomic design and neutral buoyancy make it easy to handle, even during extended dives. Its integration with Isotta housings is seamless, and it provides reliable, high-quality lighting, no matter the underwater environment. Overall, it’s a strobe that combines performance, reliability, and ease of use, making it one of the best underwater strobes avilable for underwater photography.

• Utilizes Xenon Toroidal Lamp which provides powerful output and even light dispersion
• Wide Beam Angle of 130°
• Color Temperature: 5300K
• Power 230 Watt
• Guide Number 22 underwater / ISO 100
• Manual Power Adjustment Non i-TTL / 10 Steps
• Red and White Pilot Light
• Shielded electronics and upgradeable software
• Double o-ring seal system
• Multi-color LED indicator for battery status and activity
• Uses 8 AA batteries for long utilization and minimizes battery replacement
• Neutral weight underwater

Inon has taken their renowned strobe series to a whole new level with the revolutionary Inon S-220, a worthy successor to the beloved S2000. This cutting-edge strobe boasts an innovative "fly-eye" diffusion surface within its dome port, ensuring unparalleled control over light distribution. The S220 features a wide light dispersion, complemented by an integrated focus light.

The S220 has a boosted Guide Number of 22, akin to the Inon S2000, but in a more compact and high-performance package. The strobe has a large wheel dial and a phosphorescent panel for easy adjustments at night. For protection, the S220 is designed with dual orings, which minimize flooding risks.

If you are looking for an extremely affordable strobe with quick recycle times and TTL capability, the S220 is currently the best option on the market. We loved shooting with it with the OM System TG-7 in the cold water of the Pacific Northwest. It's everything you need in a compact, travel-friendly system.

• Guide Number of 22 (tested on land
• Beam angle of 140° horizontal and 100° vertical
• S-TTL Auto and Manual Flash modes
• 12 Step Manual Flash modes
• Up to 250 flashes on a single charge

 As one of the preferred higher-end strobes for the not-so-budget-conscious underwater photographer, the Seacam Seaflash 60 Digital Underwater Strobe, with it's silver high-end finishes, is a compact and lightweight underwater strobe designed to integrate seamlessly with Seacam housing and Seacam underwater housing systems (as well as other underwater housing systems). Being smaller than it's bigger brother, the Seacam Seaflash 160, this unit delivers 60 Ws of power with a color temperature of 4400K, providing a 130° beam angle. It supports Canon e-TTL, Nikon i-TTL, S-TTL, Dual-TTL, Film TTL, and manual power adjustment in 5 steps with ± flash correction.

The strobe delivers approximately 200 flashes at maximum output, with a recycle time ranging from 0.1 to 2 seconds, depending on power settings. The unit includes a 180-lumen LED pilot light with a 10° beam angle, adjustable automatically or manually. It also offers an underexposure warning and flash-ready light, visible externally and in the camera viewfinder.

Physically, the strobe measures 150mm in length and 75mm in diameter, weighing 550 grams on land and is neutrally buoyant underwater. It operates at depths up to 80 meters.

The Seaflash 60 is compatible with Seacam housing systems, allowing for integrated underwater photography setups.

• CANON e-TTL / NIKON i-TTL / S-TTL, Dual-TTL, Film-TTL
• Power 60 Ws / 4400 K°
• Underwater guide number 8 at 100 ISO / 1 m at full power (Topside GN=24)
• Beam Angle: 130°
• 200 flashes at max power
• Recycle time 0.1 – 2 seconds

The Kraken KR‑S40 Underwater Strobe is a compact underwater strobe light manufactured by Kraken Sports and the best option for photographers looking for a macro "mini strobe". As part of the Kraken's strobe lineup, this underwater camera strobe delivers 40 Ws of output (guide number 16 at ISO 100) using a straight flash tube design. It is the smallest of the Kraken strobes, with the KR-S80 providing 80 Ws of power, and the KS160 being the most powerful in their line of strobes, offering a large 160 Ws of power.

It operates in manual, S1, and S2 modes (no TTL) with power adjustable across five levels. The unit offers a 60° beam angle and a color temperature of approximately 6000 K. Power is supplied by a single high-capacity 21700 rechargeable lithium‑ion battery (USB‑C charging) capable of delivering roughly 500–600 full‑power flashes, with a recycle time of about 1.5 seconds.

A 500‑lumen modeling light is included for framing and preview (as well as a red focus light for shy animals), although it should not be considered a video light alternative. The KR‑S40 is depth‑rated to 100 m (330 ft) and weighs approximately 530 g on land and about 200 g underwater.Its dimensions measure roughly 62 × 63 × 130 mm. Triggering is via fiber‑optic connection only (no direct electronic sync), compatible with standard Sea & Sea style cords.

Within the broader category of underwater strobes, the Kraken KR‑S40 represents one of the more compact, battery‑efficient options among the best underwater strobes for macro available. It is specifically designed for macro imaging or situations where portability and reliable spec performance in underwater conditions are required.

• Power: 40 Ws
• Color temperature: 6000K
• Guide Number: 16
• Modes: S1, S2, no TTL
• Beam Angle: 60°
• Recycle Time: 1.5 Seconds to Full Power
• Power Levels: Five (40ws, 20ws, 10ws, 5ws, 2ws)
• Target Light: 500 lumens
• Depth rating: 100m
• Battery: 1x 21700 Battery
• Batterlife: 600 full power flashes
• Fiber optic triggering only with Sea & Sea style fiber optic port

• 80Ws at the highest power
• 600 shots per charge
• No TTL
• Round flash tube
• 3 Modes: Manula, S1 & S2
• Fiber Optic trigger only
• RC-02 Remote Compatible
• Built to take on the toughest environments
• Depth Rating: 330ft/100m

The Sea & Sea YS‑01 Solis Strobe is part of the Sea & Sea strobes family, engineered for beginners just starting underwater photography. It delivers a Guide Number of 20 (ISO 100, on land) with a beam angle of 100° × 100°, extendable to 110° × 110° with diffuser.

Power is supplied by four AA batteries (alkaline or Ni‑MH), providing approximately 230 flashes (alkaline) or 300 flashes (Ni‑MH), with recycle times of ~2.5 s (alkaline) or ~1.9 s (Ni‑MH) at full power. Exposure control options include DS‑TTL II automatic mode and a 10-step manual light‑level dial (GN 1 through 20), with pre‑flash cancel and auto power‑off features. Color temperature is rated at 5600 K, dropping to 5250 K with diffuser attached.

Designed for use to 75 m (250 ft) depth, the YS‑01 weighs approximately 441 g (14.7 oz) on land and is slightly positively buoyant (+60 g) underwater when loaded with batteries. 

Triggering requires a fiber‑optic cord, and the strobe includes a bright LED target light on the front face for framing and alignment, plus an over‑pressure relief valve. Within the range of underwater strobe light options, the Sea & Sea YS‑01 Solis is positioned among models considered to be among one of the best underwater strobes in its compact, user-friendly class. It serves as a flexible underwater strobe solution for both point‑and‑shoot and mirrorless/DSLR systems – particularly for use as a main or secondary underwater strobe light.

The YS-01 is fairly similar to the YS-03. The main difference is that the YS-01 does have manual control and is a great tool for beginners that want to control their lighting. The YS-03 only has TTL (automatic) control. 

• Guide Number 20
• 100° x 100° Beam Angle
• Cutting-edge DS-TTL II circuitry
• Has a pre flash cancel mode

The Sea & Sea YS‑03 Solis is the best strobe available for beginner photographers who want automatic control without worrying about power settings. Designed for underwater use at depths up to 75 m (250 ft), it features slave TTL exposure control, compatible with any camera housing that supports TTL via a pre-flash signal.

Key specifications of the Soli YS-03 include:

Guide Number: 20 (ISO 100, on land)

Beam angle: 100 × 100° standard; expands to 110 × 110° with diffuser

Power source: Four AA batteries (alkaline = 6 V or Ni‑MH = 4.8 V); approximately 230 flashes with alkaline or 300 with Ni‑MH, and full-power recycle times of ~2.5 s (alkaline) or ~1.9 s (Ni‑MH)

Color temperature: 5600 K (5250 K with diffuser)

Dimensions: ~68 × 108 × 129 mm; weight: ~430 g without batteries; underwater buoyancy ~+10 g (slightly positive)

Other features: Rotary dial control (Off/TTL), auto power-off, over‑pressure relief valve, and fiber‑optic sync cable required (not included)

As a compact and straightforward underwater strobe light, the YS‑03 Solis is consistently listed among entry‑level yet reliable underwater strobes, suitable for both compact and mirrorless/DSLR camera systems. 

The Ikelite DS232 strobe boasts a potent power rating of 213 watt-seconds, making it one of the most powerful underwater strobes available on the market. This impressive power allows the strobe to cut through water effectively, delivering sharp, vibrant images even in challenging lighting conditions. Its quick recycle time ensures you can capture fast-paced underwater action without missing a beat. The Ikelite DS232 features intuitive controls, offering 10 steps in 1/2-stop increments, allowing for precise adjustments to get the desired lighting effect. The strobe connector is an Ikelite Bulkhead, ensuring compatibility with a wide range of underwater camera housings.

The Ikelite DS232 is not just a strobe, it also incorporates a 2500 Lumen video light. This powerful light can significantly enhance your underwater videos, delivering brighter, more vibrant footage.

• Guide Number 20
• 140 degree beam angle
• Battery life: 600 flashes
• Recycle time: 0.9 seconds at full power
• 3000 lumens focus light or video light
• Powerful ring flash - Color temp 5500K

The Weefine WFS09 is an underwater strobe and video light designed for use in underwater photography and videography. This weefine strobe provides a flash output of 60 Ws with a guide number of 22 (ISO 200, 1 m), covering a wide 140°–150° angle. It also functions as a continuous LED light with 3000 lumens brightness, a color temperature of 5000 K, and a high color rendering index (CRI 90). 

Powered by two 18650 lithium-ion batteries (in a state-of-the-art battery pack) the unit can deliver approximately 600 flashes per charge at full power, or about 50 minutes of continuous LED output. The recycle time is around 0.9 seconds at maximum strobe power. Built with an aluminum housing, the WFS09 is rated for depths up to 100 m.

This model fits into the category of compact underwater strobes, combining dual-mode operation (flash and video light) for versatility in a single unit.

• Dual-function underwater strobe with both flash and continuous light.
• Powerful 60 Ws, 140° ring strobe giving natural, wide-angle illumination.
• 3000-lumen COB LED video light with high CRI (Ra 90) ensures accurate color.
• 11 manual strobe power levels allowing fine adjustments.
• Long battery life—600+ flashes, 50 min video light runtime.
• Durable yet compact aluminum housing—dives down to 100 m.
• Strobe firing by fiber optics
• Lightweight with low underwater bulk for ease of handling.

The Backscatter Hybrid Flash HF‑1 is an underwater strobe light that combines an underwater strobe with a high-power video light in a single unit. The HF‑1 delivers a guide number of ƒ40 (ISO 100 equivalent), enabling wide-angle illumination, and has selectable modes (spot, wide, and red light) and adjustable beam angles (120°, 140°, or 160° with diffusers). The Backscatter strobe also includes a built-in 5,000-lumen video light.

The Backscatter HF-1 supports Smart Control TTL flash for Sony, Olympus, and OM-System cameras, high-speed sync (HSS), and wireless off-camera remote control, including remote power adjustment of slave units. Exposure is adjustable across 12 manual flash power levels, offering a 5.5‑stop range down to very low output—sufficient for close-up macro shooting.

The Backscatter HF1 is built for underwater use up to 100 m (330 ft), with a rugged design featuring dual O-ring seals and a sand gasket in the battery compartment. It operates on two 21700 lithium‑ion batteries, providing over 375 full-power flashes per charge and an approximate full-power recycle time of 2 seconds.

Weighing about 1.14 kg in air (with batteries, diffuser, and ball mount) and only 227 g underwater, the unit is compact enough for travel but powerful enough for larger scenes. The housing includes easily operated control dials and LED battery indicators for intuitive handling underwater.

Within the category of underwater camera strobe systems, the Backscatter Hybrid Flash stands out as a model of hybrid functionality, combining a powerful still-photo strobe and continuous video lighting in one device. In comparison to other underwater strobes, the HF‑1 is frequently identified as among the best underwater strobes for hybrid shooters who require combined photo and video capability without carrying separate lights.

• Guide Number: ƒ40
• Maximum LED Output: 5,000 Lumens
• Recycle time (full): 1.6 seconds
• Sync Cord: Fiber Optic
• Depth Rating: 330ft/100m