20-key RF controller adopts the advanced micro control unit, it is used for controlling a variety of lamp whose source of light is LED. For instance, point source of light, flexible light strip, wall washer lamp, glass curtain wall light and so on; it has many advantages such as low price, easy connection and simplicity to use. Meanwhile, you could adjust brightness, static color choices and various dynamic changes in lighting effects through wireless remote control. And according to the actual need of customers, it can carry out jumpy changing, gradual changing, strobe flash and other effects of change. Specifications: Supply voltage: DC12-24V Max Output current: 4A (each channel) Output: Three CMOS drain-open output Send frequency: 433MHZ Remote Distance: 20m Working temperature: -20-60 Control mode: RF Connect mode: Common anode Remote powered by: