Size: 237 x 50 x 30mm, cable length is about 24cm ABS material, waterproof and strong. Easy to install. Connect black to the negative wire, red to the brake light, green to the tail light, yellow to the indicator light, and white to the reverse. Universal 12V application, compatible with trailers, trucks or vans, Utes, boats, caravans and vehicles. Product Description 40 LED 12 LED tail lights are suitable for trailers, caravans, UV boats, etc. feature: Low power consumption Long lifespan and shock resistance Easy to install, bright and durable IP65 waterproof, ABS plastic material , lifespan up to 3000 hours, safer and more energy efficient Multi-function: it can be a turn signal light , a brake light, a guide light and a rear light. Simply connect the black wire to the cathode, yellow to the signal light, red to the brake light, green to the high beam, and white to the tail light. waterproof IP65 waterproof ABS material, waterproof and solid. Note: Do not soak in water Note