Powerful, value-priced lightset for the bike commuter! Front light specifications: Specifications LED type: Luminous SST40 LED 10W Battery: 21700 Li-ion - 4800mAh Max Lumens: 1000 lumens Charging Time: 5-6 hours Run Time: 3-10 hours Lighting color: White Charging Port: USB-C Material: Aluminum Front light run times: Click switch 30 (9h30mins) 60%(5h) 100%(4h) Double click switch 8hz flash 50%(10h) 3hz flash 50%(10h30mins) Press and hold switch for 2 seconds: Off Rear light specifications: LED type: 20PCS Red COB CHIPs (LED A, flood light) + 1pc XP-E2 Red LED (LED B, spotlight) Battery: 400mAh Max Lumens: 70 lumens Charging Time: 3 hours Run Time: 1.5-8 hours IP65 Waterproof Size: 38.5 x 29 x 32.2mm Weight: 40g Charging Port: USB-C Material: Anodized Aluminum Body, Plastic Accessories included: Seatpost bracket, Saddle bracket, 2x Nylon ties Memory mode function Modes and run times: Long press = on/off - When ON, click switch to change modes:Steady: LED A 100% steady(LED B off, 1.5h+20mins safe mode) LED A 50% Steady (B off, 4h+20mins safe mode) LED B 100% steady (LED A off, 2h+20mins safe mode) LED B 50% Steady (LED A off,4h+20mins safe mode) All LED 100% steady (1.5h+20mins safe mode) All LED 50% Steady (3h + 20mins safe mode)