FEATURES: It is made of stainless steel, it could be used independently,the technical parameters are: 1. Tube power: ≥ 30W×2 or 15w×2 2. Number of tubes:1 3. Applicable static area: ≥20-35m2 4. Voltage: 110V±10% or 220V±10%, Frequency: 50Hz±10% 5. Input power: 180VA 6. UV wavelength: 253.7nm 7. Irradiance: ≥ 428uw/cm2 8. It is equipped with a timer equipment with the time limitation of 30,45,60,90 min.