Specifications: Operating Voltage：10-30V DC Waterproof Rate：Ip67 Operating Lumens Output：100lm/Led Body Color：Black Color：White/Red/ Blue/ Amber Lens Material：PMMA Working time：50000 hours above life time Working temperature：-40~ 85°C Features: 4 Cree Leds Chip, Supper Bright, Excellent Performance. 2 Strobe Model: Low and Fast. 3 times a round. Supprot any vehicle 10 – 30V DC. IP67 Waterproof. Won’t afraid raining, snowy. 7 color options. Combo by yourself. Package Included: 2pcs x Strobe Light Applications: Doxmall Strobe Light can be applied to Police car, Firefighter, Emergency, Plow Trucks, Tow Trucks, and many more public safety and emergency vehicles.