EdisonBright Fenix BT20 750 lumens Dual Distance Beam Cree LED 5 Mode Bike Bicycle Light with 4 bay Smart Battery Charger, 2 X Fenix ARB-L2 18650 rechargeable batteries and 4 X CR123 Batteries bundle Dual Distance Beam system with Max 750 lumens Wide compatibility; Aerodynamic user-friendly design. Intelligent power indicator ; Helmet Mount Included Water resistance to IPX-6 standard. Bundle includes 2X Genuine Fenix ARB-L2 Batteries, 4X EdisonBright CR123A batteries & EdisonBright 4 bay Smart Battery Charger