"Powerful Sterilization: Fish tank disinfection lamps can kill up to 99.99% of bacteria UV-C disinfection effectively destroys all microorganisms by breaking down certain chemical bonds, disrupting the structure of DNA, RNA and proteins.Quick Disinfection: 254nm wavelength light helps to remove green color from fish tank, pond and make it clear. Very efficient and time saving to use within 30 minutes, providing a clean living environment for your fish. This will be the best choice for fishing enthusiasts.EASY TO OPERATE: Control the lights at the push of a button, and use the timer update version (3 hours, 6 hours, 12 hours, 24 hours) to make the entire cleaning process easier than ever. 15 watt aquarium cleaning light, recommended for 3-4 hours in 2-4 days. Power plugs and timers should be kept away from water sources to avoid danger.High-quality silicone glass: double-tube aquarium water cleaning light, three-layer protection is more sturdy. Glass products, handle carefully, do not shake, easy to cause short circuit. Please note that this light can only clean the green color in the water, but not the black deposits attached to rocks and tanks.PrecautionsDo not watch the UV lamp for a long time, so as not to irradiate the skin with the UV lamp. When using an aquarium sanitizing light, put it in a filter, or use an opaque plate to separate the light from the fish to avoid direct light on the fish and hurt them, but make sure the water can pass through the plate."