RichFire SF-705C Cree XM-L T6 800lm 5-Mode White Zooming Flashlight - (1 x 18650/3x AAA) 800 lumen flash, internal wiring applies the high efficient booster circuit Made of high quality ABS plastic & aluminum alloy Adopting solid copper tail point contaction to ensure electrical conduct/good heat dissipation Working voltage is highly adaptive even to batteries at the largest voltage Light and easy to use, helpful and convenient