features and benefits: rechargeable, hand Held flashlight with 3 lighting modes plus Strobe function c4 LED produces up to 640 lumens (high) optimized electronics provide regulated intensity throughout battery charge hand Held, rechargeable flashlight produces up to 640 lumens! features shock proof C4 LED technology that has a 50, 000 hour lifetime. 3 modes of lighting - high, medium, low and Strobe function. Produces up to 640 lumens (high), 340 lumens (medium), and 170 lumens (low). run times of up to 1.25 hours (high), 2 hours (medium), and 4 hours (low). provides maximum illumination with a wide beam. Nickel metal Hydride battery is rechargeable up to 1000 times. Optimized electronics provide regulated intensity throughout battery charge. Durable, machined aluminum construction with Non slip rubberized grip and unbreakable polycarbonate lens. Purple