Romisen RC-A9 Heavy-Duty one Cree Q5 & two UV-LED Aluminum Flashlight Powered by one 18650 battery or two CR123A batteries(not included) One button switch with 2-modes: Cree Q5 LED ON & UV-LED ON Type of Bulb: one Cree Q5 & two UV-LED The body was made by reliable durable aluminum material.