D20S Scuba Diving Light, 2000 Lumens Waterproof Underwater Lights, IPX8 Scuba Diving Flashlight,984ft Long Range Underwater Flashlight for Diving Snorkeling Deep Sea Cave with Charger

I bought one December 2023 and while diving this past month the on off button came out so I contacted the company and they sent me a replacement button with an extra spring and cap. I did recently buy a second one as they are awesome for scuba diving. I love that it has different brightnesses and I've never had an issue. It does get beat up, but then I'm scuba diving and when I come out of the water sometimes the flashlight is on my BC And it bangs against the boat.

very good buy for it's price . Works really well and is durable. So far, no issues. We've been using it quite frequent as we live in an island and its keeping up to its specs.

Good little light that is bright enough to use under water even in the daytime as well as a great light for night dives. I only gave it four stars because the push button switch is too easy to turn on inadvertently, especially when you put it in a pocket. This is a problem during day dives when I don't realize it is turned on. It is not a problem during night dives as I turn it on and leave it on the entire dive. Charged battery lasts throughout a one hour night dive.

not bright, even when fully charged, can barely see far away, it just brightens up close. the battery dies soo fast! water gets stuck inside the PUSH button on/off. all underwater lights should be twist lights. as less chance of water corrupting the circut

At under thirty bucks, this is a pretty good dive light that is very bright with some nice features. The size is perfect in the hand, and it has numerous uses outside of diving and caving. There are some caveats, however, which I have listed in the cons section. Pros: - It’s a fairly compact flashlight at 5.5-inches long, 1.5-inches wide at the bezel, and 1.2-inches wide at the base. It can easily be gripped in one hand and actuated by the thumb. - It comes with extra O-rings and a lanyard. - It’s a decent weight at 8-ounces with the battery installed, and made from a durable 6061 aluminum alloy. - The lens is glass, not plastic, with an Anti-reflective coating to help with the lumens output. - It has four settings: low, medium, high, and turbo. The different settings can be accessed by depressing the on/off switch. Turning off the light requires depressing the switch for 2-3 seconds. - The light has a memory function for your last setting. When you turn it off and then back on again, it will turn on at the last setting at which you had it set. - The battery lasts for a around 1-hour on high, and up to 10-hours on low. - Uses a removeable rechargeable 3000mAh 3.7V 18650 Li-ion battery which can be charged using the supplied charger that connects to a wall charger using a supplied micro-USB to USB-A cable. There is an illuminated indicator charging light on the charger: solid Red and it is charging; Green indicates that charging is complete. - Water resistant IP8 waterproof rating, allowing it to be submerged up to a depth of 500-feet. - The O-rings and threads are well greased, making battery replacement smooth and it helps keep the light waterproof. - When the battery is low, the light steps-down to a lower illumination setting automatically, indicating it is time to recharge the battery. - To prevent overheating, if the light gets to 122-degrees Fahrenheit in the turbo mode, the light will automatically step down to a lower illumination setting. - It can be set down on its tail (as long as you don’t have the lanyard attached) to illuminate upwards hands-free. - Has a 1-year warranty as long as the company stays around, and they respond to messages. Cons (for which I have deducted two stars): - Is it really 2000-Lumens on turbo? I don’t think so. It’s about as powerful as a 1200-Lumen weapon light that I have mounted on my rifle. - The beam pattern is fixed and not adjustable. There is a bright center beam and then it radiates outward at a much lower lumen output. Either that works for you, or it doesn’t. - There is conflicting information about the battery duration. The manual says it lasts anywhere from 1.5 hours to 20-hours depending on illumination setting, but the listing says anywhere from 2 to 10 hours. In real world usage I find it is anywhere from 1-hour to 8.5-hours. - I wish it had a tail-cap switch, as I often grip flashlights overhanded with my thumb at the base. - The push button switch can be too easily bumped and actuated, inadvertently turning the light on, and draining the battery (and possibly burning a hole in your pack or pocket), or accidentally changing the illumination setting when you don’t want to. There is no resistance to actuate the switch, and no tactile click either. - The battery cannot be charged from within the light; the battery has to be removed and put in the charger, which uses the older micro-USB connection and not the newer USB-C connection. - Other than the auto step-down feature, there is no way to tell when the battery is getting low and no battery indicator meter. - It takes a long 3-hours to charge the battery up from empty. - It does not come with a wall charger, which most manufacturers omit these days. - What’s up with the brand name, GoZebra? Despite the cons, at under thirty bucks it is a reasonable dive light at a good deal. I just wish the lumen rating was more accurate and that the switch could not be so easily activated.

First off I own a lot of flashlights, but this one has immediately become a favorite. The combination of size, brightness and features makes this a great flashlight. Very many flashlights that are available grossly overstate both the number of lumens, battery life and come with really horrible batteries. I don't have the equipment to verify the stated lumens but this is a very bright flashlight that is very nearly as bright as a two cell flashlight I have which is over twice the size. It is also very much brighter than other single cell flashlights I own of a comparable size. I didn't do full run tests to test battery life but I did test the battery with my battery charger's test capability that measured a capacity of 3370mAh which is larger than the stated 3000mAh. Things I like: 1. Very bright 2. Four brightness levels 3. Lowest brightness level lower than most lights and should give very long run time on that setting. 4. Compact size vs performance 5. Seems very high quality 6. Included battery is of high quality 7. Very nice control button 8. Included lanyard is very nice. Some people might not like the fact you have to remove the battery to charge it, but this does reduce possibility for water to leak in. The included battery charger is adequate, I would however recommend a smart charger rather than this. Running at the highest setting it does get rather hot, which is not surprising. After 10 minutes it was quite uncomfortable in the hand. The next power level down does get warm but not uncomfortably so and is still very bright. Flashlight turns on with a single press of the button, long press turns it off, single presses switch between 4 brightness levels. There are no strobe or SOS pattern settings that other flashlights have that I find quite annoying when you accidentally select them. I'm not a diver and I was only able to test the waterproofness with a quick dunk test, but it appears well sealed with double O-Rings on the part where you insert the batteries. Overall I was very pleasantly surprised with how this light performed, it very much exceeded my expectations.