Feature: 1. EFFECTIVE PURIFICATION: Aquarium clean light has high transmittance, thickened explosion proof quartz tube, helps to reduce bacteria and algae in the water, reduces the rate of fish illness and solves the problem of cloudy water. 2. DUAL USE: Aquarium clean light is dual use on land and water, removes bacteria and algae, quickly creates nature water quality, sealed and grouted, safe and no leakage. 3. EASY TO USE: Clean light can be connected to filters, submersible pumps, upper, bottom and other water pipes involved in the articulation of the filtration system, can also be used alone. Impervious to light ornamental glass tank directly used. 4. OUTLET FITTINGS: Submersible clean light is equipped with three different diameters of outlet fittings, suitable for most of the water pipes, use carefully and gently, to avoid rupture of the lamp leading to water inlet can not be used. 5. CAUTION: Fish tank clean light use process due to UV rays have a certain degree of damage to the human body, please do not observe through the naked eye, please do not irradiate the skin and eyes. Specification: Item Type: Aquarium Clean Light Material: ABS Use: Aquarium, Fish Tank UV Water Purification Lamps Power: 7W Suggested Tank Size: Approx. 60-200cm/23.6-78.7in Suggested Tank Water Volume: 100-950L Water Outlet Port Size: Diameter: Approx. 13mm/0.51in Diameter: Approx. 16mm/0.63in Diameter: Approx. 19mm/0.75in . Package List: 1 x Water Purification Lamp6 x Spout2 x Water Pipe Clamp1 x Instruction Manual Note: 1. Manual measurement please allow some error.2. Please do not use it directly against the fish, and take care to place it in a suitable location for use such as in a tank.