OLIGHT R40 Seeker CREE XM-L2 1100 lumen USB Rechargeable LED Flashlight with EdisonBright Battery Sampler Pack Uses Cree XM-L2 LED with a lifespan of 50000 hours, Max 1100 Lumens USB rechargeable lithium battery with charging cable included Lock-out function to prevent accidental activation, automatically return to your last brightness Side switch cycles through three brightness levels, strobe, and notifies you of standby mode EdisonBright Battery Sampler pack Included in bundle