Cree T6 3-Mode 1200-Lumen Memory White LED Flashlight (1x18650 Not Included) Emitter Brand/Type: CREE Emitter BIN: T6 Total Emitters: 1 Battery Configurations: 1 x 18650 or 3 x AAA batteries (batteries not included) Voltage Input: 3.6 ~ 4.5V, 4.5V max.