Features: 1. Non corrosive housing, long lasting, dustproof, shockproof, waterproof. Ensures durability for long-term use. 2. These LEDs draw less current, generate less heat and are brighter and light faster than an incandescent bulbs. 3. IP65 waterproof LED trailer lights, effectively withstand the invasion and corrosion of sand, dust, dirt, rain, snow, etc. 4. 4" Round Chrome Rings with 24pcs LEDs, easy to install to different types of 12V vehicles. Applications: Compatible with trucks, trailers, tractors, semi-trailer, dump truck, bus, boat, special vehicle, etc. For Heavy Duty trucks like Kenworth Peterbilt Freightliner Western Star Volvo International Mack Paccar and other Truck lights Product Size: Working Voltage: DC 12V Waterproof Rate: IP65 Shape: Round Number of LED: 24 Light Color: Red/White Outer Diameter: 6" Inner Diameter: 4" Item Dimension: 6*6*1.55 Inch Wire Connection Tips: Gray Wire: Ground Gray Wire + Green Wire: Low Brightness / Tail & Running Light Gray Wire + Red Wire: High brightness / Brake & Stop & Turn Light.