KNOG Blinder Arc 5.5 USB Rechargeable Front Light 1 x CREE XM-L2 LED with an elliptical beam of 16Degreex24Degree (H x W) that pumps out 550 lumens Lithium polymer battery with an integrated USB charger all wrapped up in a waterproof aluminum and polycarbonate body and weighs 150g Includes two straps (one for 22-29mm, one for 30-35mm), uses a stainless steel clamp, and features a swivel feature to better aim your light Run time: high (steady) = 1.5hr, medium (steady) = 3hr, low (steady) = 6hr 4, flashing = 12hr, Charge time: 5-6hr Features low battery LED indicator and a 5-6hr charge time