1Improve the fish tank water quality turbidity, water plant quick growing, bacteria breeding problems. 2Continuous using every day, to maintain good water quality, reduce fish incidence, algae removal and sterilization. 3Double lamp tube, sterilizing effect is more strong. Removable housing, easy for cleaning. 4Deep waterproof design and prevent electric leakage, more safe to use. 5High light transmittance, safety and explosion-proof, effective sterilization.