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

Received it in good condition, thanks

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.

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.

Heavy but great lights

I love them -- BUT -- epoxy a stainless steel nut on the back -- it is a real bitch to remove the battery -- Also remember to use some sand paper to roughen up the contact points -- these are flood lights -- not spot lights --- I use all 4 together under the water -- with my GoPro 12 -- battery life is OK -- great for pictures -- very bright -- good for 15 to 20 feet -- like I said -- these are NOT a spot light - they are a FLOOD LIGHT

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.