LED Light Bar Multiple Strobe Remote Control Switch, Ampper Wireless Controller Transmitter & Receiver On/Off Strobe Flash Pulse for LED Light Bar Wiring Harness Telecontrol Innovation design: perfect for LED light bar modules or LED light system you want to make flash / strobe. Compatible with 90% LED light wiring harness on Amazon.com. Multiple functions: on, off, zig-zag flash, strobe, pulsing fade on/off (press the same button again, it changes the speed of pattern). Long control range: up to 100 feet in most installs, vary depending on mounting location and circumstance. Easy to install: the item have 3 Pin molex male and female, just plug & play if your wiring harness have the 3 Pin molex on switch circuit (Pls check the contactor direction firstly). Exception status: if your wiring harness is self-made, just cut the item's 3 Pin molex and connect the both ends contactor to your switch circuit.