Total 38 leds function as Stop Turn Tail lights, Backup lights & license illuminator:

– 16 Red LEDs for stop/turn/tail functions;
– 18 White LEDs for backup function;
– 4 White LEDs for license illuminator.

4 color Wire connection:
– 1. White wire – Ground
– 2. Black wire – 16 Red Leds light up in low brightness + 4 White license illuminator works.
– 3. Yellow wire – 18 white Leds work as back up light
– 4. Red wire – 16 Red Leds light up in high brightness

Application: Truck, Trailer, Jeep, Boat, bus, Lorry, Van, caravan etc