High-intensity halogen 8 watt spot bi-pin bulb and two ultra-bright blue LEDsStrobe and steady modesUp to 80,000 candela (peak beam intensity) with halogen bulbBulb rating: 150 lumens typicalRun times are up to three hours with steady halogen and LEDs; up to 6 hours with blinking halogen and LEDs; up to 60 hours with blinking LEDs only600V 4.5 amp-hour rechargeable battery can be recharged up to 500 timesWaterproof7.5"L x 6.5"H, 3.3 lbsSerialized for positive identificationQuick-release strap works like a seatbelt buckle for fast and easy release/connection of shoulder straps