Klein Tools' rechargeable hard hat headlamp easily attaches directly to a Klein Hard Hat or Klein Tools' bracketed strap. When you need a stationary work light, simply mount the headlamp onto any ferrous surface with the convenient integrated magnet. This versatile LED headlight provides three modes to fit your task: a bright, 14-Hour floodlight; a brighter 9-Hour focused spotlight, and an ultra-bright 300 lumen boost mode. You'll know when it's time to recharge the lamp, because the LED lights on the battery gauge clearly indicate how much battery you have left.