Zebralight H52F Floody Headlamp Cool White - 285 Lumens - use AA battery Battery capacity indicator (LED flashes 1-4 times, 4 short clicks to start) Low battery alert when the light is switched Off (LED flashes if the battery voltage is below 1.06V) Proprietary heat sinking design bonds the LED board directly to the unibody aluminum casing Smart user interface provides fast and easy access to all brightness levels and beacon-strobes. Ships Out Within One Business Day!