Powerful sterilization: Fish tank disinfection lamp can kill up to 99.99% of bacteria. UV-C disinfection effectively eliminates all microorganisms by destroying certain chemical bonds and destroying the structure of DNA, RNA and proteins. Rapid disinfection: 254nm wavelength light helps remove green fish tanks and pond colors at a glance. It can be used within 30 minutes, very efficient and time-saving, and provides a clean living environment for your fish. This will be the best choice for fishing enthusiasts. Easy to operate: control the light with the push of a button, and updated versions of the timer (3 hours, 6 hours, 12 hours, 24 hours) make the entire cleaning process easier than ever. 15W aquarium cleaning light, 2-4 hours recommended 3-4 hours The power plug and timer should be kept away from the water source to avoid danger. High-Quality Silicone Glass: Double-tube aquarium water cleaning light, three layers of protection for stronger protection. Glass products should be handled with care and do not shake, which can easily cause a short circuit. Please note that this light can only remove the green color in the water, not the black sediment attached to rocks and water tanks. Note: Do not watch the UV lamp for a long time to avoid the UV lamp irradiating your skin. When using an aquarium disinfection light, place it in a filter or use an opaque plate to separate the light from the fish to avoid direct light hitting the fish and harming them, but make sure water can pass through the plate. "