One of the brightest flashlights in the Princeton Tec line. Powered by 8 AA cell batteries to give you 7.5 watts of power. A flip switch allows easy use with gloves. Due to the parallel battery configuration, this light can be used with just 4 AA batteries with reduced burn time (this also allows the Surge to float head up!) • Adjustable beam • Weight: 10.8 oz. w/batteries (8 AA included) • Burn time: 3-5 hours w/8 AA alkialine batteries • Bulb life: 40+ hours • Waterproof to 500 feet • Rocket Red