6 LED 12/24V For industrial, agricultural, emergency vehicles... 19 selectable functions Synchronization function using the same lights. Aluminum body. Only 10mm thick. Gasket and screws included Waterproof IP67 Functions: 1. Random 2. Simple division 3. Double division 4. Quad division 5. Quint division 6. Mega division 7. Ultra division 8. Single-quad division 9. Simple H division /L 10. Pick All 11. Double All 12. Quad All (E4 PASSED) 13. Quint All 14. Mega All 15. Ultra All 16. Single Quad All 17. Quad All 18. Constant Half 19. Stable All