Color Black + Yellow Quantity 1 Piece Material Aluminum + plastic Emitter Brand OthersN/A LED Type XM-L Emitter BIN T6 Color BIN Neutral White Number of Emitters 1 Actual Lumens 550 lumens Power Supply 3 x 18650 (included) Working Voltage 3.7~4.2 V Current 1800 mA Runtime 3~6 Hour Number of Modes Others2 Mode Arrangement HiMid Mode Memory No Switch Type Forward clicky Switch Location Head Lens Material Glass Reflector Aluminum Smooth Working Depth Underwater 60 m Strap/Clip Strap included Other Features Rechargeable high power flashlight; IPX8 waterproof grating. Packing List 1 x Flashlight (40cm-strap) 1 x Power charger (US plug / 100~240V / 110cm-cable) 1 x Mini bottle of preservative oil