Ultrafire C2 HA-III LED Flashlight (3.6V~9V)
HA-III Anti-Scratch Finish - Takes both 2xCR123A and 1x18650 batteries - Accepted voltage input 3.6V ~ 9V - Glass lens and orange-peel aluminum reflector cup - Switch type: 1-mode clickie - Ultrafire model number: C2 - Phase-one test result: 5500 lux throw @ 1 meter (+/- 500lux) with Ultrafire 2400mAh 3.7V battery . - Note: this light's the battery compartment does not have contact spring on the positive node. So protected 18650 cells (those with recessed positive node) will not work with this light without a small spacer.