Fits 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: Suitable voltage: 12-24V Power: 12W LED quantity: 4pcs Lamp color: yellow Waterproof rating: IP67 Service life: 50,000 hours Material: Aluminum + Plastic Function mode :19 stroboscopic modes (with power off memory function) Features: *Special design Ultra slim, super bright with surface mount. *Functions .