Weight: 411.93 g Dimensions: 9.61 in x 2.2 in x 2.2 in (24.41 cm x 5.59 cmx 5.59 cm) Brand: Romisen Battery Configuration 4 x CR123A / 1 x 18650 Model: Romisen RCT6 Black Features 6 x Cree XR-E Q4-WC LED emitters Accepted voltage input range: 6.0V~16.8V Supports both 3.0V and 3.6V CR123A batteries Versatile battery configuration: combine CR123A and 18650 the way you like Extension tube for 4 x CR123A, 2 x CR123A + 1 x 18650, 2 x 18650 included 3-Mode barrel side clicky switch: 2 x Cree LED > 4 x Cree LED > 6 x Cree LED 500 lumens maximum brightness (manufacturer rated) 1500mA curcuit driver output Regulated driver circuitry 50 to 60 minutes estimated total runtime (manufacturer rated) Coated glass lens with aluminum textured/OP reflector Comes with a free flashlight holster