TAISHAN Aquarium Clean Light, 9W LED, Algae Bloom Cleaner for Fish Tank, Submersible with Timer, Clear Waterproof Clean Lamp for Pond, Swimming Pool

There isn’t any mercury in the device. The device has “a high quality quartz ultraviolet lamp tube, which is not filled with mercury.” According to online research: this light is faster than a mercury bulb that takes time to heat up. UVC at 254 doesn’t produce ozone like other UVC under 240nm can. UVC at 254 can make someone go blind for a few days [snow blindness][photokeratitis] can cause burns to the skin if not careful. Do not turn on around people or living things. Mercury bulbs are a lot slower to activate. Don’t look at the light. Safety UV glasses that block 254nm recommended. I purchased such glasses before killing bacteria in the tray of my HVAC system. So far this light was the solution to a bad smelling bacterial problem. I can confirm there is a burnt bacteria smell. After running the light and the AC at the same time. It seems the Endospores opened due to the cold. Making the Bacteria available for UVC destruction. As the institutions indicate. There is a burnt smell that is similar to the bacterial infection that was in the air handler. The infection of my Heat Pump/AC so far seems to have died. Will be leaving the device in there in case of future microbial problems. This is a microorganism killing device. That burns everything that is alive. Including your ⚠️🚫👁️ eyes. I would wear safety glasses 🥽 and have the device behind other 🛡️👀✅ objects [inside my HVAC air handler in the condensate tray] before activating the device. ✅😎

the light has drastically cleared the water in my aquarium as well as inhibited algea growth in just 48 hours. I have a fluval flex 32.5 gallon freshwater guppy tank. the video is before the uv lamp installation (taken approx 2 weeks before). the picture is of the tank this morning! a world of a difference! I'm currently only running the uv lamp 12 hours a day when the aquarium lighting is on. I purchased the 9w bulb and it fits perfectly in the rear filter housing (as pictured) DO NOT INSTALL THIS LAMP IN THE OPEN AREA OF YOUR TANK. IT WILL HARM/BURN THE FISH!!! IT NEEDS INSTALLED SOMEWHERE IN THE TANK THAT FISH DO NOT HAVE ACCESS TO. (sump tank, canister filter, segregated housing of some sort. I've also seen people 3D print a housing for UV bulbs.) Just do not expose your fish to these rays!!!!!

Works great. The timer is perfect to fine tune the need to clear up the algae clean up.

This light is so incredible if you're going to raise fish in a tank or turtles you have to have this light. It kills the algae automatically You never have to worry about the water turning of brown or black or smelly highly recommended for all fish.

What I dislike is that 1 of the light bulb glass was broken even inside the bix even with the styro protection it came with. I opened the box and heard something fell and as I pulled out the bulb, the end tip was shattered. The other is working perfectly in one of my tank.

Please do not buy this item. I bought it and within 24 hours it killed ALL of my fish. Do not buy!!!!!

this works great just read the instructions. stick it in the filter, not in your fish tank. literally clears it up overnight.

Worked good for about two and a half months and then it burned out. Spend the extra money and get a UV sterilizer that you can replace the bulb in.