UF-DIV13S
Master the Deep.

Engineered for 100M depth. 3,350 Lumens of crystal clarity. The ultimate companion for technical, cave, and wreck diving.

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Treasure Found

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100M

Depth Rating

Certified for deep technical dives in both salt and fresh water.

3350

Lumens

Ultra-bright LED for maximum visibility in turbid waters.

Long

Runtime

Included 3.7V 21700 rechargeable battery with USB-C charging for maximum convenience.

300M

Beam Range

Focused beam cuts through the darkness, revealing details at incredible distances.

Captured in
the Wild.

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Location: Blue Hole, Belize

Penetrating the deep stalactite formations at 40m.

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Location: Chuuk Lagoon

Illuminating the engine room of the Fujikawa Maru.

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Silfra FissureSilfra Fissure

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Cenote Angelita

Anti-Explosion
Safety Valve.

Deep diving creates extreme pressure differentials. The DIV13S features a built-in automatic safety valve that releases internal gas buildup caused by battery chemistry or pressure changes.

Prevents internal pressure buildup

Automatic gas release mechanism

Maintains structural integrity at depth

Essential for high-performance Li-ion safety

Versatility in
Every Environment.

From professional forensics to outdoor exploration, the RUV3 is your ultimate companion.

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Cave Exploration

High-intensity beam to navigate tight overhead environments.

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Wreck Penetration

Rugged durability for the harshest saltwater conditions.

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Night Diving

Wide spill for peripheral awareness during night excursions.

3-Mode Rotary Switch

Magnetic rotary switch with Low (500lm), Medium (1500lm), and High (3350lm) modes. No mechanical buttons; fully operable with gloves.

Premium Construction

CNC-machined aircraft-grade aluminum with anti-slip finish and a stainless steel bezel for maximum impact resistance.

Technical Specifications

Depth Rating

100 Meters (IPX8 Waterproof)

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Max Output

3350 Lumens

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Peak Intensity

22,500cd

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Light Modes

Low (500) / Med (1500) / High (3350)

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Switch Type

Magnetic Rotary (No Buttons)

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Battery

3.7V 21700 5000mAh

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Body Material

CNC Aircraft Aluminum

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Bezel Material

Stainless Steel

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Included

Hand-strap & Dive Lanyard

Operational Advisory

The DIV13S is optimized for freshwater operations. While fully sealed for marine use, please exercise caution in saltwater environments with fine sand. Micro-particles can accumulate in the magnetic switch assembly over time. Always rinse thoroughly with fresh water after every dive to ensure peak performance.

Ready for
the Descent.

Every DIV13S comes as a complete professional kit. No hidden costs, no extra batteries needed. Open the box, charge, and dive.

DIV13S Flashlight

CNC Aluminum Body

21700 Battery

5000mAh Rechargeable

USB-C Cable

Fast Charging Support

Hand Holster

Adjustable Neoprene

Wrist Lanyard

Heavy-duty Nylon

Spare O-Rings

Dual-seal Replacements

Diver Reviews

Trusted by the Global Diving Community

4.80 / 5.0

Capt. David Miller

"The magnetic rotary switch is the best I've used. Even with 5mm neoprene gloves in cold water, mode switching is tactile and instant. The beam penetration in low-viz conditions is exceptional."

MAR 22, 2026

Sarah Jenkins

"Used this for a wreck survey in the North Sea. The build quality is rugged, and the safety valve is a critical feature I haven't seen in many other lights at this price point. Highly recommended."

MAR 12, 2026

Marcus Thorne

"3350 lumens is no joke. It lights up entire chambers. The 21700 battery gives me more than enough runtime for long penetrations. Solid piece of kit."

MAR 2, 2026

Own the
Darkness.

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3-Year Warranty • Professional Series

Secure Checkout

3,350 LUMENS

3350 LUMENS | 300M | PCV

The UltraFire UF-DIV13S delivers 3350 lumens with a 300 m beam, offering bright, clear illumination for cave diving, night exploration, and underwater photography.

SKU: 9576

$69.99
$89.99
SALE 22% OFF

Fast Shipping from U.S. Warehouse

Estimated delivery (within the U.S.) May 11 - May 13

Free Shipping 

Easy Returns

3-Year Warranty

What's Included

  • UF-DIV13S Diving Flashlight
  • Rechargeable Battery
  • USB Charging Cable
  • Hand-Strap Holster
  • Wrist Lanyard
  • Spare O-ring
  • User Manual
  • Gift Box

Customer Reviews

Based on 5 reviews
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I
INeedMoreLumens
Great Flashlight!

Great Flashlight!
Feels great in hand and is very bright!
Wrist holder is nice and comfortable.
This is now my favorite UltraFire flashlight!

R
Robbie Rizzo
Easy to Use and Very Bright

We just love a good rechargeable flashlight and this is certainly one of them! It is super bright, lasts a long time, and is easy to change between the different modes. We haven’t used the wrist holder, so we are not able to comment on that, but we are very happy with the light itself!

C
Cheryl
Very Powerful 21700 Lithium Ion Industrial Battery; Charging Port is ON the Battery Itself

This 3350 Lumens Dive Light Diving Flashlight is a SUPER BRIGHT light with a 300 meter beam. It has 3 lighting modes that require turning the head for on/off, and the 3 modes (no button).

The stainless steel and aluminum body are tough, and impact resistant. It's also rated IPX8 waterproof and comes with extra seals, and a little container of what looks like petroleum jelly. The instructions don't mention what the jelly is used for, but I'm sure divers may know - obviously for added waterproofing. I got this to use on outdoor adventures and spelunking on dry ground. This can be used for underwater photography.

This has a super powerful 21700 lithium ion industrial battery. I was surprised that the battery itself has THE charging port on it; it's the only way to charge the battery. I'm torn 50/50 on whether this is brilliant, or potentially super dangerous. You decide.

I personally will NOT be exposing this flashlight to water, much less salt water. But, that's me going into mom-safety-mode, and being over protective, I'm sure. My personal opinion only.

You have to make certain the seals are good and waterproof before diving with it. This Flashlight will certainly illuminate dark underwater areas, and is great for hiking, climbing, and spelunking in the dark.

C
Charles Huston
Wrist holder not that important when Diving.

The light is bright gives a wide disbursement, so if you are in cloudy water or a lot of particulates, it's like driving in a snowstorm.But if the water's clear, it's fantastic

D
Dava

I took this UltraFire dive light on an 85-foot dive, and it performed flawlessly — no leaks, no issues whatsoever. The brightness is incredible, clearly illuminating the underwater environment and giving me confidence while navigating during night and wreck dives.

The rechargeable battery lasts a long time, and the power indicator is super convenient for knowing when it’s time to recharge. With three different light modes, it’s versatile for any underwater situation.

Solid, reliable, and built tough — perfect for serious divers. Highly recommend for anyone looking for a dependable dive flashlight!

$69.99

UltraFire® UF-DIV13S Scuba Diving Flashlight

$89.99

Features

Safety

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Review

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