This lightweight Active Eye AELH green LED head light is ideally suited for viewing plants at night while providing hands-free illumination. The 17 long lasting LEDs allow you to check on your grow room without disrupting the flowering cycle with bright overhead lamps or fluorescents. Simply apply the nylon strap over your head, adjust the lamp tilt to maximize its efficiency, and modify the different settings to your preferences. Complete your night time gardening tasks with this hands free LED headlight by Active Eye. Uses three AAA batteries (sold separately).