Go small, go bright, go waterproof. The compact GX10 is built water-tight with an ultra-strong, lightweight polymer handle over-molded with grippy rubber. At just 5-1/4 in long, this pocket-friendly light shines in four modes medium, high, turbo and low with a max output of 550 Lumens. Use the COAST-patented PURE BEAM optic and TWIST FOCUS system to transition seamlessly between the edge-to-edge clarity of the ultra view flood beam and the long range precision of the BULLS-EYE spot beam. No storm, splash or submersion down to 1 m (3 ft) will stop you. The grip textured handle features a lanyard loop, which doubles as an anti-roll tail cap so you can set the flashlight down and not worry about it getting away on uneven surfaces. Engineered with COAST dual power technology, the flashlight runs on three AAA alkaline batteries (included) but can also operate using a COAST ZITHION-X ZX557 rechargeable battery (purchased separately). The GX10 is constructed of top-grade materials to meet IP67 waterproof and dust-resistant standards and is backed by a lifetime warranty.Each COAST alkaline dual power is compatible with COAST extreme performance alkaline batteries and other standard alkaline batteriesEach product can also be powered with a COAST ported ZITHION-X rechargeable battery, this offers you the convenience of alkaline and the cost efficiency of rechargeable batteryThe crush-proof feature combines a super-tough stainless steel core with a grip textured poly-nylon exterior to build unimaginable strength into highly functional lightsDrop proof for use in rugged, high-impact environmentsOptions to stay ready, with COAST dual power technology, you have the choice to power your light with USB rechargeable batteries or with standard alkaline batteriesTake on any dirty work environment with this dust-resistant lightPack two powerful beams into one and seamlessly transition with no halos or hot spots between short and long range viewing, COAST’s patented focusing technology adapts to your needThe ultra view flood beam delivers edge-to-edge clarity in a broad circle and the BULLS-EYE spot beam sends a sharp ray of light at a distance with a transitional halo around the spot to increase the effective viewing areaThe XP lights not only features standard light modes but also COAST’s signature turbo mode for overpowered light in critical situations