... , it is used for controlling a variety of lamp whose source of light is LED RF 20 Key RGB controller ... used for controlling a variety of lamp whose source of light is LED. For instance, point source of light, flexible light strip, ... can carry out jumpy changing, gradual changing, stroboflash and other effects of change. Technical parametersWorking temperature: -20-60degreeSupply voltage: DC5V, 12V, ...