The xenon/LED combination of the Twin-Task offer versatile, long-running, go-anywhere performance by choosing between a super-bright beam or incredibly long run time. Features C4® LED technology for extreme brightness with a 50,000-hour lifetime and ultrabright white LEDs with a 100,000-hour lifetime. Computer-machined anodized-aluminum construction and a matte black anodized finish. Unbreakable polycarbonate lense and is IPX4 rated for water-resistant operation with O-ring-sealed openings. 1 meter impact resistance tested. Dual lighting modes. Wrist lanyard. Runs on three AA alkaline batteries (not included). Output: 100 lumens to 96 meters for 5.75 hours (C4 LED); 33 lumens to 43 meters for 34 hours (3 LED). Dimensions: 8.54"L x 1.33"W x .79"D. Weight: 6.91 oz.