DMX signal amplifier can re-output DMX signal whose voltage is normal after receiving DMX signal, it mainly use to extend DMX signals transmission distance, increase the ability to drive DMX signal. Multi-function, Super stability , Super compact Working temperature: -20~60℃ Supply voltage: DC 12-24V Input signal: DMX signal Output signal:8 channels DMX signal Dimension: 198 x 92 x 46mm/7.8 x 3.6 x 1.8 (approx) Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!