TrustFire DF50 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 received the flashlight on September 7th and took it to a field trip in the Caribbean. The light performed great, it is very bright and the battery last forever, as promoted. However, I detected some condensation on the front glass. I checked the battery part and it was dry, I closed it again (after applying some silicon), hoping the "problem" was over, but the condensation remained. After coming back, I put the flashlight in fresh water for a couple of hours and when I checked again I saw water inside the front glass. I opened the battery chamber again and it was dry. After shaking the front part of the flashlight, (salt) water dripped out. Of course, the light is broken now. I wrote to the seller, but they have not replied to the guarantee. I hope they do since it is not a cheap flashlight. Evidently, it is a manufacturing problem, since the glass is intact and the body of the flashlight is not compromised in any way.Update: TrustFire sent a brand new light head. It is working very fine so far. Great customer service. Congratulations.

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.

I bought this light as a dive light for a recent trip to Indonesia. After 36 dives, I have these thoughts to share:It's a good light to carry during the day - I carried it on every dive, and it was great for seeing everything in full color instead of the muted colors you get at depth. If found myself using it constantly and really enjoyed seeing everything so well. As a dive light for night dives, not so good. The broad beam and strong brightness (even on the low setting) makes you the least favorite person on the dive because it's so easy to blind your fellow divers. I ended up carrying a small focused beam light on night dives, and only turned on this light when I needed to flood an area with light.The low setting is more that bright enough for normal diving - day-time and night-time. This yields about six hours of burn time. I charged it overnight once the battery level indicator went yellow, and was getting over 8 dives a charge.My biggest gripe is with the controls. The primary thing you want to do is turn the thing on and off as needed during the dive. It's far less likely (even un-likely under normal use) that you'll want to switch between low, high, ultraviolet and red emitters. However, a single press switches between emitters, and a longer, more deliberate press is necessary to turn the light on an off. I was constantly fooled thinking I had turned the light off, only to find moments later it was still burning in ultraviolet or red mode, necessitating a bunch of presses to get back to low white, and then a long press to turn it off. All an unnecessary distraction.I would highly recommend to the manufacturer that they swap the controls, where a single press will turn the light on and off, and the longer, more deliberate press is necessary to change light modes.

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.

I was surprised to find out the manufacturer actually attempted to address the most common complaint in these reviews: the flimsy ball mount. As you can see in the attached images, they've changed the material and design of the ball mount stem. It, as well as the threading, are no longer made of aluminum but some sort of steel and the stem has hexagonal cross section. Correspondingly, they've added a steel insert in the body of the light to receive the new stem threading. I found that tightening the ball mount just by holding the ball with my hand and no tools was sufficient but it's your call. I took the light for a week of diving in Caribbean waters and had no issues. The battery charged and functioned as expected. Two 40-60 min dives a day with the light turned on all the time at the brightest setting the battery was able to handle just fine. No issues with the ball mount underwater. The brightness of the light seems to be legit as it is clearly a lot brighter than my old 3000 lumens light, especially considering how wide angle it is. All the modes work as advertised and switching between modes during the dive was no problem. There is only one complaint: the steel used for the insert (and possibly the ball stem) is not stainless. You may be able to see in the picture some orange coloration in the depth of the insert in the body of the light - that's rust. If I were to dive with this light all the time, this would have been a big turn off, but I dive relatively infrequently so I do not see this as a deal breaker.

Great little light. There are only two white light settings a high and a low. The high is very bright at close distance but struggles in full daylight. Underwater though it’s great! I too immediately ditched the supplied mount and used a RAM mount and needed to buy a larger hose clamp. Works really well and I love the red light! I worried when I bought it that it didn’t work but there is a black piece between the battery and the connectors that needs to be removed before you can operate it. It’s not mentioned in the instructions at all.

Received it in good condition, thanks

Heavy but great lights

I purchased two of these barely 4 months ago. Used for about 10 or so dives. One of them leaked at the glass, and since then the LED has been defective. Amazon US (seller) will not entertain any refund/replacement/repair and Trustfire will not do the same as it was purchased through Amazon. These are great lights apart from the leak, and if it had been bought through the manufacturer, they would have entertained the warranty.