You Asked, we listened! our dual switch technology is now available in the strion DS hpl - which produces a wide beam pattern with brighter peripheral illumination and superior down-range performance. Strobe for disorienting or signaling: runs 2.5 hours. Deep-dish parabolic reflector provides a long-range targeting beam with optimum peripheral illumination. C4 LED technology for extreme brightness. Lithium Ion battery is rechargeable up to 1,000 times; fully recharges in 3 hours. Clamp style charger holder with digital control circuit that prevents over-charge; LED indicates charge status. Piggyback charger doubles your run time by charging a spare battery (sold separately) so you can keep on working; reduces down time. IPX4 water-resistant; 2M impact resistance tested. 6000 Series anodized machined aircraft aluminum; unbreakable polycarbonate lens with scratch-resistant coating. 7.56-Inch (19.20 cm); 6.9-Ounce (196 grams). serialized for positive identification.