1Remove algae and chlorine, eliminate bacteria and disinfect, purify water quality. 2Black engineering plastic material, anti-corrosion and anti-aging, longer service life. 3180 shielding, not only can protect our eyes, but also does not affect the sterilization effect. 4When clean filter box or lamp, must first cut off the power supply. It is recommended to replace the lamp tube every 12 months. 5Installation instructions: Take out the suction cup and fix it on the lamp tube, buckle the hood and adjust it to proper angle, put it in the aquarium and connect the power.