The innovative ring features a circular cob led which generates 60 lumens of light output features 1 pc 15 chips round ring cob high brightness white led cnc aluminium heat sink casing rechargeable lithium polymer battery 37v 280mah usb rechargeable 6 modes standard high over drive 20 flashing 100 flashing strobe quick release universal bracket rb 22 fits all round bars and aero style bars 2 o rings for mountingrs g fits 20 35mm diameters