Marelux Artemis 4500 Underwater Video Light Review

Marelux Artemis 4500 RMT Video Light Review

The Marelux Artemis 4500 RMT is a compact, three-color underwater video light that delivers impressive brightness, soft falloff, and creative versatility in a travel-friendly body. Rated at 4500 lumens, its wide 120° beam and neutral 6000K color temperature produce natural, flattering illumination for both macro and wide-angle shooting.

In real dives, the light’s output felt strong — just slightly lower than the rated 4500 lumens, likely because of its broad beam angle that spreads light evenly across the frame. The result is beautifully soft, even coverage with clean edges and a pleasingly cool tone that looks excellent underwater.

Battery life is excellent — about two dives per charge using standard 18650 cells — and the rugged anodized aluminum body feels purpose-built for dive travel. While I didn’t test the remote shutter control feature (available for compatible Marelux housings), it’s a smart addition for shooters working on tripods or in tight spaces. The red and blue modes stand out for their quality and are especially useful for creative backlighting and night dives.

At around $350, the Artemis 4500 RMT offers outstanding value — a bright, even, and reliable light that’s perfect for travel, reef, and macro videography.

Key Specifications

• Output: 4500 lm white / 1000 lm red / 600 lm blue
• Color Temperature: 6000 K (CRI 72)
• Beam Angle: 120° flood, soft edge falloff
• Power Levels: 100 / 80 / 50 / 20 percent
• Remote Shutter Mode: Compatible with Marelux Remote Shutter Module (42510)
• Battery: 2 × 18650 Li-ion (~1 hr at full power / ~2 dives typical)
• Material: Anodized aluminum body, user-serviceable O-rings
• Depth Rating: 100 m / 330 ft
• Size & Weight: Ø 50 × 190 mm / ~260 g underwater
• Price: ≈ $350 USD

Pros

• Strong, even light output with a smooth 120° beam
• Natural, neutral color tone for video and photo
• Excellent red and blue modes for creative lighting
• Rugged aluminum body; compact and travel-friendly
• Reliable battery life — around two dives per charge
• Great price-to-performance ratio

Cons

• CRI 72 limits extreme color-grading flexibility
• Remote shutter only works with specific Marelux housings

Verdict

The Marelux Artemis 4500 RMT is a powerful, beautifully balanced video light that combines strong output, wide coverage, and creative color modes — all in a durable, travel-ready design. For underwater shooters who want premium performance without the premium price tag, it’s one of the best-value underwater video lights of 2025.