It is made of carbon steel, with its double-tube structure, it could be used independently, the technical parameters are:
Technical parameter∶

1.Tube power:≥30W×2 
2. Number of tubes:2
3. Applicable static area∶≥30m²
4.Voltage:220V±10%,Frequency:50Hz±10%
5. Input power:80VA 
6. UV wavelength:253.7nm
7. Irradiance∶≥107uw/cm²（Single tube）
8.It is movable and foldable,the tube could be concealed inside,and adjusted to various angles:0°,15°,40°, 65°,90°,115°,140°,165°,180°。
9.It is equipped with a timer equipment with the time limitation of 0-120 min.