Brand: - Model: BT-QS66 Emitter Brand: Cree LED Type: XPG BIN: R5 Color: White Number of Emitters: 1 Voltage Input: 3.2~4.2V Battery Configuration: 1 x 18650 battery (not included) Circuitry: Digital Regulated 1000mA Current Output Brightness: 180LM Runtime: 50 minutes (manufacturer rated) Number of Modes: 2 Mode Arrangement: High > Low Mode Memory: No Switch Type: Twisty Switch Location: Tailcap Lens: Plastic Lens Reflector: Aluminum Textured/OP Strap Included: No Clip Included: No Accessories/Spare parts: - Others Features: Hard anodized housing 50m depth waterproof