We use the wireless remote control kit to remote control 1 LED Light and 3 Light Bars. The working distance can reach 1-3 miles. The maximum current of the relay is 30A. It has waterproof case. This kind of wireless remote control kit is two-way and has feedback function. The working voltage is 6V9V12V24Vdc. br Model:0020671 (S4PXW-DC12-ANT3 & CC-4) br Online shop: br Email: katherinexjy@gmail.