EdisonBright Olight S30R II Baton rechargeable XM-L2 U3 1020 Lumen LED Flashlight with type 18650 3600mAh Li-ion battery, charging base with two CR123A Lithium back-up batteries bundle Max output of 1020Lumen using Cree XM-L2 U3 LED The flashlight includes 1 x 18650 3600mAh Hardened tempered glass with two-sided anti-reflective coating featuring a glow-in-the-dark o-ring Multi-function side switch with five brightness levels, plus a strobe mode This bundle includes type 18650 3600mAh Li-ion battery,charging base with two EdisonBright CR123A Lithium back-up batteries