1. Socket type: 3-wire 2. Number of LEDs: 12LED 3. Voltage: DC12V-24V 4. Power: 36W 5. Scope of application: cars, motorcycles, pickups, ships, trucks 6. Wiring method: three wires. Black is the negative electrode, red is the positive electrode. Yellow is the variable light (take the negative electrode and release it to change a change)