1200 Lumens LED Light Break the darkness with a powerful 1200-lumen.usb rechargable bike lights has super penetrating strong . Floodlight which is 90 ° perpendicular within the range of 100 meters and the beam dont' has any scattering light spot productioned. Never worry again about riding in the dark! USB Rechargable Bike Lights High performance poly lithium battery through usb port charging which is provides up to 3 hours of use at maximum brightnes. Only need charging 2 hours that can avoiding to power off in cycling at dark night . 6 Modes LED 10w high light ,The front light has 6 modes . Switch control 6 Mode:1:Single press the bottom :Strong->Middle->weak 2:Double press the bottom Strobe(10Hz)->Strobe(2Hz)->SOS. The rear light has 3 modes:3 brightness options (turbo bright, fast stable, slow stable). Multiple choices fiting any ourdoor riding enviroment saving the power of battery and using more time . Specification : LED:10W Weight:50g Dimension:77(L)x25(H)x40(W) Brightness:1100 Lumens Color Temperature:6000k-8000k Charging time :2 hours Working time :90 minuters