This high performance set features a 760 lumen front light and 100 lumen rear light 1 x cree xml u2 led cnc aluminium heat sink heat sink protection system led baord copper coated for improved cooling and heat management micro usb remote control switch panasonic lithium ion 36v 3200 mah battery quick release battery design 7 modes quick release handlebar mount low battery charging amp fully charged indicator mode amp status indicator automatic fully charged cut off system high precisio