Zebralight H502d L2 High CRI Daylight AA Flood Headlamp Zebralight H502d L2 High CRI Daylight AA Flood Headlamp Smart user interface provides fast and easy access to all brightness levels Precision machined unibody casing from premium grade aluminum bar stock Proprietary heat sinking design bonds the LED board directly to the unibody aluminum casing Battery power can be locked out by slightly unscrewing the tailcap to prevent unwanted activations or parasitic drain