Fit for: 1. Off road vehicle, ATVs, truck, engineering vehicles (excavator, treedozer, road roller, bulldozer, crane and mining truck, etc). 2. Special vehicle(fire engine, police cars, rescue vehicle, communication vehicle, military command vehicle) forklift, trains, boat, marine, bus, and tanks. Specifications: Product Material: Aluminium+plastic Suitable Voltage: 12-24V Power: 12W (3W per light) LED Quantity: 6 LEDs per light LED Mode: 3030LED Light's Colour: 2 amber light, 2 white light Function Mode: 18 kinds of strobe mode (with power failure memory function) Wiring Mode: Black Wire: Negative pole .