Great for map-reading or signaling in low-light conditions, the NEBO Protec™ Greenlight™ Flashlight produces up to 170 lumens of green light and offers 5 lighting modes, including high, medium, low, S.O.S and defensive strobe. The flashlight features a 4x adjustable zoom, a magnetic base for hands-free lighting, a rear cap for normal use and a pressure switch attachment. Mounts on both vented and plain barrel shotguns. Water-resistant. Requires 3 AAA batteries (included).