Vehicle led lighthead, car grille lighthead, car led head light. Used for police car, cop car, fire fighting, ambulance EMS, wrecker, project car, sprinkler, patrol car, emergency vehicle. Features: Generation III high power LED, surface mount warning light head Weather and vibration resistant Pre-programmed multiple flash patterns Alternating or simultaneous flashing available Mounting: Screw permanent (2pcs ST3.9*20mm) Technical Specifications: Voltage: 12-24 VDC 3 PCS of 3W LED LED cover available: Amber, blue, red, white Colour options: Single color(10 kinds flash pattern) or dual color(15 kinds flash pattern) Lens: TIR Dimensions: 4″ wide X 3/4″ high X 1.4″ deep Flash Patterns: 15 kinds The wires length of exposure: 180mm The Red wire: VIN+ (ON/OFF 1) The blue wire: VIN+ (ON/OFF 2) The Black wire: VIN- The Yellow wire: SYN/Flahs pattern charge Dimensions: 4.9" wide x 1.5" high x 0.7" deep Flash Patterns: 1. Quad Burst - Split 2. Quad Burst - All 3. Quad Burst Alternating* 4. Quad - Split 5. Quad - All 6. Quad Alternating* 7. Single - Split 8. Single - All 9. Single - Alternating* 10. Super Flash - Split 11. Super Flash - All 12. Super Flash - Alternating* 13. Quad/Single w/ Quad Burst - Split 14. Quad/Single w/ Quad Burst 15. Accelerator - Split 16. Accelerator - All 17. Express Flash 18. California Steady with Pulse 19. California Steady 20. Steady All 21. Cycle Flash Split & All 22. Off