UST - Ultimate Survival Technologies, Tight Light 1.0, Headlamp, 30 Lumens LED, Blue WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. Three unbreakable LED bulbs provide up to 30 lumens of bright light Runs up to 48 hours continuously on Low, and 10 hours on high Red light mode provides low-profile lighting Handy clip provides additional options to attach light Adjustable cord for comfortable fit IPX6 (protected against storm water conditions from all directions) Modes: (white) low > high > flashing > (red) steady on > SOS flashing > off BATTERIES: 2 x CR2032 lithium batteries (included) Size HxWxD: 1.25 in x 1.25 in x 2 in (32 mm x 32 mm x 25 mm) Weight: 1 oz (28 g) with batteries Product Description The lightweight, water-resistant UST Tight Light 1.0 headlamp produces a bright light when and where you need it -- worn around your head, clipped to a cap, or attached to gear.