product description Y100 bicycle headlight Lamp beads: XPG-3 two white lights, two yellow lights Mode: close and high beam independent switch, near beam German gauge, high beam optical lens Battery: 6400mAH Panasonic (18650*2) Material: aluminum alloy Waterproof; IP65 Size: 99*43*39mm Weight: 250g Brightness: 1600LM (measured) Bracket: 360° rotating bracket, hanging bracket Certification: CE/ROHS/PSE/MSDS Endurance: 7-14h