LAMPHUS CosmicRay CRLH06 LED Strobe Grille Flashing Lights [SAE Class 1] [72 Modes] [6 Watt] [Linear] [Weatherproof] Warning Lights for Police & Firefighter Emergency Vehicles - Amber/Red User Manual available for download under Product Information Details Search "Lamphus CRLH06" on YouTube for Product Video Compliant with SAE J595 NOV08 Class I (Amber/Blue/Red/White) Certification. Each unit consists of 6 Generation III high intensity LEDs; 72 selectable flash combinations, sync-able between multiple units. TBT (Turn/Brake/Tail) Light Function.; Compactly sized for versatile application; Weatherproof ready for exterior mounting. (Not submersible)