TrustFireDF50 Scuba Diving Light, 6500 Lumens Video Camera Photography Dive LED Flashlight, USB Rechargeable Torch, 70M Underwater, Super Bright, with Violet Red White Lights

I have 2 of these lights on a camera rig, with around 50 dives on them now.They're great lights, and for a good price. They have plenty of power for daytime videography, and at night they're even better. Video lights don't have a hot spot, so they illuminate the area very naturally. I don't find my self reaching for a dive torch unless I need more reach at night (e.g. when you see something move in the distance). If you're doing still photography, you'd be better off with strobes, but these still work just fine, and are far cheaper than a strobe set up.Durability is great. I soak them, charge batteries and grease O rings after every dive day. The ball mount appears to be hardened carbon steel, which isn't great as they're corroding where they meet the aluminum housing. I installed mine with locktite as a slipping ball mount is a real pain, but with the corrosion they're never coming out again anyway. I don't even want to disturb them to clean the corrosion, they're installed, they don't slip, they're staying there. Complaints about stripped ball mount sockets are likely due to over torque issues. Take it easy with the wrench and use some locktite if you're concerned about them backing out (as I was).The mode/power button works well. It remembers the last mode you were on, and turns on the that mode when next activated. It also flashes intermittently to indicate battery level (green, yellow, red, flashing red) which is handy as charging these batteries is a real hassle.It has a lock mode to prevent accidental activation for some reason, the button is so firm and requires a long press to turn on anyway, so its not necessary. If you think the light is dead, you might have activated it accidently, just double click the power button to turn lock mode on and off.

I bought two units 4 years ago for my underwater veideography.The lights are made of good quality aluminum and the black coating remains.I used them through about 60-70 dives and they worked perfectly each time. The full battery holds through 2-3 dives easily with max light on during most of the dive. If you keep them off until you ready to shoot, they will hold even longer.I prefer to charge them at the end of each day so I don't get surprises in the next day.The product offers 4 useful modes: High Power, Half Power, UV and Red LightI used the UV during night dives to illuminate bio lumence corals and it was very pretty.Overall, for the price, this is a great product.The pictures were taken out of a 4k video shot with GoPro 9

I purchased two lights in August and September 2021. I have used one of them no more than 5 times, the other I have used only once. I then left them in storage for two years as I had no time to dive at all. They were stored in the protective cases they came with, with batteries disconnected.I tried to use them last weekend (January 2024) and none of them switched on. I have charged the batteries (one was continuous green when connected, and the other one was blinking as charging until it got continuous green too.)I have sent an email to Trustfire, will wait and see what they say. When the light work they give enormous amount of light (I film cave diving movies so no amount of light is too much). I really wish I can make them work again.

There are many things we like about these lights, which explains why we've bought 7 of them. The fact that only 2 remain in operation explains why we won't buy any more.The good: Nice size for a dive continuous light, good battery life, usable brightness. The 395 nm UV light is great for nighttime corals and anemones. I really love these lights until they flood.The bad: Many of these are shipped with a loose lens retaining ring. We couldn't figure out how out lights kept flooding until the ring (and lens) on a brand-new one fell off on the boat. That's one of the 2 that's survived, probably because we tightened the ring before the first dive. Honestly, these things flood like the banks of the Nile. None has lasted longer than a couple of weeks of diving (Cozumel, max depth 164 feet/50 meters, max duration 102 minutes, max dives/week 8).The minor: The cases seem as if they might be useful but the latches are very poorly made. At least one latch on every case broke within a week. Some arrived broken. Others broke in luggage (containing other fragile items that were undamaged). Don't buy these for the case.The ball joint has nothing to keep it from rotating, so adjusting your light can loosen the ball joint's connection to it. Many other manufacturers use various means to prevent this.

When I broke this out last week for a night dive in Cozumel, there were a few chuckles. That all ended however as soon as we got in the water. Everyone had nice bright flashlights, they looked really cute but only one person had the power of the sun in their hand and that was me. I bought this as a light for my camera rig, but the rig broke so I decided to just hold it and that worked out great. It's not focused like a normal flashlight but did a fantastic job of illumating a huge swath of the reef making it easier for everyone to pick stuff out. My kids were there and they loved it. Also used the UV light to bring out the green glow in the coral, it was really cool. A suprise benefit was that my light was so bright it attracted a swarm of small invertebrates that kept darting in an out of the beam, they looked like shooting stars, it was amazing. Had it on for 50+ minutes and had no issues with the battery. It's a little on the heavy side but totally worth it.