- Model:?UltraFire?A1- Features a?Cree XR-E?Q5-WC LED emitter- Powered by 1 x 3.0V/3.6V CR123A?battery- Maximum voltage input: 4.2V- 5-mode tail cap clicky switch: Hi > Mid > Lo > Strobe > Slow Strobe- 230?lumen maximum brightness (manufacturer rated)- 1000mA output digitally regulated LED driver circuitry- Coated glass lens with aluminum?reflector/OP reflector                                                                                                                                Dimensions: 3.23 in x 0.79 in x 0.79 in<br />Weight: 1.41 oz