Fotocore GT-Pro Underwater Strobe

The Fotocore GTPro underwater strobe is designed for photographers who shoot wide-angle scenes at speed and don’t want their lighting to be the limiting factor. With fast recycle times, high sustained output, and a circular flash tube optimized for broad coverage, the GTPro is built to keep pace with action-heavy dives where timing and consistency matter more than automation.

In real-world use, this strobe shines for shooters firing rapid sequences—schools of fish, fast-moving subjects, or wide reef scenes—thanks to its ability to maintain output while syncing up to 10 frames per second. That performance comes with a clear tradeoff: the GTPro is a fully manual strobe with no S-TTL or TTL support. For photographers who already understand manual flash control, it’s a powerful, predictable tool; for those expecting camera-driven exposure, it’s the wrong fit despite being positioned among the best underwater strobes in its class.

Best for: Wide-angle still photographers shooting fast action, sequences, or burst modes.
Not for: Shooters expecting S-TTL or camera-driven TTL exposure—this strobe is manual only.
Extremely fast recycle times (0.1–1s) support continuous shooting up to 10 fps.
160Ws output with a circular flash tube for smoother wide-angle coverage.
Common confusion: Buyers often assume TTL support due to the LCD and multi-mode flash—GTPro does not support S-TTL or TTL.

Fotocore GTPro strobe rear control panel

Direct, tactile control underwater

The GTPro’s physical controls are laid out for use with cold or gloved hands, reducing reliance on tiny buttons or screens. This matters when you need to make quick power changes between shots.

Controls are easy to identify by feel.
No menu diving mid-dive.
Supports deliberate manual exposure workflows.

Fotocore GTPro underwater strobe in use on reef scene

Built for consistent still-lighting output

In practice, photographers choose the GTPro for repeatable lighting behavior rather than chasing headline specs. That consistency makes it easier to balance dual-strobe setups.

Predictable output from shot to shot.
Easier matching when using two strobes.
Well-suited for wide-angle or macro stills.

Fotocore GTPro strobe mounted on underwater arm system

Integrates into standard arm systems

The GTPro slots into typical ball-mount arm configurations used across many underwater housings, making it easy to add or remove from an existing rig.

Compatible with common arm segment layouts.
Works well in single or dual-strobe builds.

Perfect for…

Wide-angle reef and wreck still photography.
Macro shooters who prefer manual flash control.
Photographers upgrading from entry-level strobes.
Travel rigs where consistency matters more than automation.

Pros

Intuitive manual control.
Consistent output behavior.
Fits into standard strobe arm workflows.

Cons

Not aimed at video lighting.
No TTL

Gotchas

Trigger compatibility must be confirmed before purchase.
Power expectations vary based on shooting distance and water conditions.

Content reviewed by Bluewater Photo staff for real-world use and compatibility.

Order the Fotocore GT Pro Strobes Now

Free shipping over $200 · Lifetime Support included

The Fotocore GTPro is a practical choice for photographers who value control and consistency over automation hype.

Explore related gear at Bluewater Photo:

Learn More — Guides & Articles

Best Underwater Camera for 2025 — our top picks for underwater photography.
Best Dive Computer — our top dive computer picks.
Best underwater strobes for 2025 — guide to the best strobes available in 2025
Best Video Lights for 2025 — our favorite continuous lights.

Model: GT-Pro
Mode: 9 modes
Guide number: 24
Flash tube: Circular flash tube
Power: 160Ws
Connection: Optical cable / 6 Pins
Illumination: 160°–110° (Reduction Ring)
Battery pack: FOTOCORE battery (4 × 18650 lithium batteries)
Battery pack power: 25.2 Wh
Flash capacity: 650 flashes at full power, 6000 flashes at 1st mode
Recycle time: 0.1s–1s
Flash speed: Continuous unlimited flash sync with 10 flashes/sec from first to third mode
Power indicator: LCD displaying
Color temperature: 5000K
Waterproof depth: 100m
Focus/target light: 30W / 3000 lumens (center focus) — 3 modes
Dimensions: 142 × 92mm
Weight (on land): 1210g without battery
Package includes: Strobe, Battery, Reduction Ring, Charger, User Manual
TTL: Does not support S-TTL & TTL
Note: All parameters are based on FOTOCORE testing standard.

Weight: 2.70 LBS

Dimensions: 6.00 (in) × 4.00 (in) × 6.00 (in)

Brand: Fotocore

Strobe
Cover
Diffuser
Ball Mount
4x 18650 Batteries
Allen Wrench

Fotocore GTPro Underwater Strobe — FAQ

Will this strobe work with my underwater housing?
Compatibility depends on your housing, trigger, and sync method. Please verify your setup with Bluewater Photo before ordering.
Does the Fotocore GTPro support TTL or S-TTL?
No. The GTPro is a fully manual strobe and does not support TTL or S-TTL exposure control.
Can I shoot continuous bursts with this strobe?
Yes. The GTPro supports unlimited flash sync up to 10 frames per second in the first three flash modes.
Is this strobe suitable for video?
No. This is a still-photography strobe and does not function as a continuous video light beyond its focus/target light.
What is the most common setup issue?
The most common issue is assuming automatic exposure control. The GTPro requires manual flash power adjustment.
What comes in the box?
Strobe, battery, reduction ring, charger, and user manual. Please verify inclusions with Bluewater Photo before purchase.