Product: rc led light controller rc car accessories. Features: rc car led lights switch can control the light brightness, switch on/off, and even simulate blinking and breathing effects, making the model car more realistic and vivid. Portable: Rc led lamp control panel is small and lightweight, easy to carry and store, you can control the model car anytime and anywhere, whether at home or on the go. Easy to Install: Rc car light control switch is easy to install, just plug the servo of the light control module into the third channels of the receiver, then you can remote control the lights on and off. Widely Applied: Rc light receiver is suitable for rc car, boat, airplane, crawler, truck. Size Chart: whiteheads: 12.5cmx1cm/4.92inchx0.39inch JR DuPont head: 12cmx1cm/4.72inchx0.39inch Package Includes: 1RC LED Light Controller Note: Please allow slightly errors 1-2cm differences due to manual measurement.