Wurkkos DL10R Dive Light - 4500 Lumen Super Bright Underwater Flashlight with Magnetic Rotary Switch 100m Diving Depth Scuba Dive Light,IPX-8 Waterproof,100000 Hours Lifespan Charger for Under Water

Nothing wrong with it.

I have not yet used this flashlight while diving as it’s still too cold where I live, so I can’t speak to its waterproofness. Pros: I was looking for a flashlight that I could use while diving, as well as for other activities during inclement weather such as hiking, walking, camping, and everyday use. This flashlight is very ergonomic and comfortable to hold and operate with one hand (rotary twist), has a very simple UI, has excellent flood and throw, uses a 90 CRI XHP70B 5000K led with a very nice tint, and has on-board USB-C charging of the single 21700 battery. It also includes a wrist lanyard and there are two o-rings at each disassembly point (head cap and tail cap). The head cap and tail cap are also very tight and somewhat difficult to unscrew, which makes me think that the flashlight will be water-tight. Cons: My biggest complaint with this flashlight is the brightness levels. The brightness levels are 600, 1800, and 4500 lumens (three total), and the lowest level is still very bright. I'd prefer to have five evenly-spaced brightness levels with two lower brightness levels (ex. 150, 300, 600, 1800, 4500 lumens), to be able to conserve battery life when needed. I’d also like the flashlight to include a pocket clip and/or belt holster for walking, hiking, and camping, as well as the ability to tail-stand. This flashlight is excellent overall and I like it very much. It is very bright, high CRI, simple and easy to use and carry, and has on-board usb-c charging. However I’d like to see additional lower brightness levels, an included pocket clip and/or belt holster, and the ability to tail-stand.

I previously purchased a Wurkkos flashlight and was impressed with its performance. When I needed another flashlight for outdoor use, I decided to look for a waterproof option. I came across this dive flashlight and decided to give it a try. The size and weight are just right for me, and the brightness is excellent, covering a large area—making it a great work light as well. To test its waterproofing, I submerged it in water for several hours, and it performed flawlessly. The switch ring appears to use a magnetic mechanism, as I was able to turn it on with an external magnet. This non-contact switch design ensures it remains completely watertight. The flashlight comes with a 5000mAh battery, which should provide a long runtime. I left it on underwater for several hours but didn’t have the patience to wait until the battery fully drained. Based on the manual, it should run for over five hours without issue. Overall, this is a highly reliable flashlight that performs well in any weather or situation. I highly recommend it to anyone in need of a durable, waterproof light.

If there's one thing I like about this diving light, it's the simplicity of it. It's a no-frills light, without all the extra, unnecessary features. The packaging is standard for Wurkkos, with everything tucked neatly inside. Not only does this light come with the 21700 battery installed, but it includes a USB charger as well! It also comes with a strap/lanyard that has a rubber sleeve on it for comfort, extra o-rings, an 18650 adapter tube, and instructions, of course. If you're familiar with diving lights, you'll recognize the magnetic ring switch. If you're not familiar with diving lights, this magnetic switch is used instead of your standard button. This switch operates the light by use of a magnet, mitigating the need to run wires to the switch, thus allowing the body to be completely sealed. This switch has 4 positions: off, low, medium and high. It's as simple as that! In regard to the size, it fits right in the palm of your hand. Like most of the lights I own that use a 21700 battery, I find that it's not too big and not too small. I chose the 2700K over the 5000K and boy am I glad I did. It gives off such a warm glow, it reminds me of a sunset or campfire. If you've never had such a warm temperature light before, I recommend getting one. In a world of bright white LEDs, something just feels peaceful about it.

Really awesome flashlight wish the battery life was a little longer. Would not mind a larger form factor to accommodate. But I do love that you do not have to remove the battery to charge it. Whatever it takes to allow it to have two hours of battery life on high would be great.