Feature: 1. THICKENED EXPLOSION PROOF QUARTZ TUBE: High transmittance, thickened explosion proof quartz tube, help to reduce viruses, algae, etc. in the water, reduce the rate of fish illness, solve the problem of cloudy water. Amphibious, quickly create safe water quality, sealed and grouted, safe and no leakage. 2. 3 WATER OUTLETS: Aquarium water clean lamp is equipped with three different diameters of spout fittings, suitable for most of the water pipes, when using carefully and gently, to avoid the lamp rupture cause to water inlet can not be used. 3. 4 LEVEL TIMER MODE: Aquarium water clean light adopts four timing modes, 3/6/12/24H, four indicator lights flashing for the power supply is energized, the lamp is off state, the red indicator light does not light for the power supply cut off state. 4. AUTOMATIC RECIRCULATION: Timing time starts to count from the setup time, daily automatic cycle, open, close, for example: 12 o'clock to press the first light, for the timing of 3 hours, 15 o'clock after the automatic closure. The next day at 12:00 automatically open, 15:00 closed, so every day cycle. 5. FISH TANK CLEAN LIGHT: Fish tank clean light plays the role of water purification and algae removal through running water, can be connected to different pumps, filters, top, bottom and other involved water pipes articulating filtration system. Specification: Item Type: Fish Tank Clean Light Material: ABS Usage: Clean Light for Fish Tank Power: 3.5W Recommended Tank Size: Approx. 30-80cm / 11.8-31.5in Recommended Water Volume: 20-120L Outlet Sizes: Diameter: Approx. 13mm / 0.51in, Diameter: Approx. 16mm / 0.63in, Diameter: Approx. 19mm / 0.75in. Package List: 1 x Fish Tank Clean Light6 x Outlet2 x Hose Clamp1 x User Manual Note: 1. Please do not use the fish directly. Place it in the appropriate location in the tank or container.2. Please allow some error due to manual measurement.3. During the use of light on the human body has a certain degree of damage, please do not observe through the naked eye, please do not irradiate the skin and eyes.