Fenix BT20 is the world's first professional Bilke Light which emply Dual Distance Beam System. It features broad floodlight, Close-in visibility and long-range illumination. BT20 Employs the neutral white LED featuring the advantages of strong penetration power and good color rendering which helps night riders better identify the color of objects and outdoor conditionsensuring safety when mountain biking, touring, commuting etc. Bundles with EdisonBright 4 bay Smart Battery Charger, Two Genuine ARB-L2 18650 batteries & Four EdisonBright CR123A Batteries. Charger Features: -Capable of charging 4 batteries simultaneously -Automatically identifies Li-ion, Ni-MH and Ni-Cd rechargeable batteries -Features three charging modes (CC, CV and Trickle Charge) -Automatically detects battery status and selects the appropriate voltage and charge mode -3 Color LED displays charging progress for each battery -Automatically stops charging when complete -Features reverse polarity protection -Input voltage: AC 110~220V 50/60HZ or DC 12V -Compatible with: Li-ion: 26650, 22650, 18650, 17670, 18490, 17500, 17335, 16340(RCR123), 14500, 10440 Ni-MH / Ni-CD: AA, AAA, A, SC, C This bundle include, -Fenix BT20 750 Lumens bike Light -Fenix Battery Case -Fenix Battery case Sleeve -2x Fenix ARB-L2 rechargeable 18650 batteries -EdisonBright 4 bay Smart Battery Charger -Car Charging adapter cable -Helmet Mount -O ring Mounting Straps X 3 -Extension Cable-EdisonBright CR123 Batteries X 4