Car Perimeter Warning light, led strobe lights. Features: Generation III high power LED, surface mount lighthead Weather and vibration resistant Pre-programmed 22 flash patterns Alternating or simultaneous flashing available Technical Specifications: Voltage: 12-24 VDC 4 pcs of 1W LED Led cover available: Amber, blue, red, white, green Lens: TIR Dimensions: 4" wide x 1.1" high x 0.8" 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