Technical Specification: This product is made of carbon steel,with its double-tube structures, but also can be used independently ,the technical parameters are: 1.Tube Power:≥30W×2 2.Number of tubes:2 3.Applicable static area:≥30m2 4.Voltage:110V±10% or 220V±10%,Frequency:50Hz±10% 5.Input power:180VA 6.UV wavelength:253.7nm 7.Irradiance:≥214uw/cm2 8.It is movable and foldable,the tube could be concealed inside,and adjusted to various angles:90°,135°,180°. 9.It is equipped with a timer equipment with the time limitation of 0-120 min.