Description This Active Eye Head Lamp features a wraparound nylon strap which fits snugly over your head without squeezing or pulling hairs. Placed prominently at the forehead level is a lightweight but bright green LED headlight. 12 high intensity LED bulbs burn for over 50,000 hours and operate on multiple setting levels. . Take advantage of the Head Lamp outside of the grow room as well, for night hikes, geocaching, or backyard adventures. Requires three AAA batteries (sold separately)