With its Generation III 1-watt LEDs and 16 flash patterns, the IPS TIR A-4, propels the warning power capabilities of all emergency vehicles and motorcycles. Tir optics Powered by 12V 100,000 hours life span 15 available flash patterns Runs on Generation III lighting Weather damage resistant LEDs Dimensions: 2" H x 5" W x 1.25" L Aluminum weather-proof housing 7 day money back guarantee SUPER BRIGHT SMALL BUT POWERFULL GREAT FOR POLICE / FIRE SECURITY TOWTRUCK