EdisonBright Fenix BC21R 880 lumen Dual Distance Beam Cree XM-L2 T6 LED USB rechargeable Bike Bicycle Light, rechargeable 18650 battery with 2 X CR123 Batteries bundle 880 lumens using one Cree XM-L2 T6 neutral white LED with bettery color rendition Optimized Dual Distance Beam System New type quick-release bike mount for easy and secure adjustment of the light direction Micro USB direct charging (Rechargeable 18650 battery included) This bundle include two EdisonBright CR123A lithium batteries for back-up use.