The ThermoFlo(TM) Nighthawk White Light is a 3 watt LED headlamp that’s perfect for those who work in dimly lit or dark spaces. It’s capable of zooming in and out and features three settings: High, low and flash. The Nighthawk White Light also includes a changeable green lens to improve depth of field (White Light version only). It’s made of waterproof material and has an output power of 20 lumens. The Nighthawk is perfect, and up to 30 hours when set to low.