- Features a generic high powered 1W LED emitter- Powered by 1.2V/1.5V AA battery- Single-mode tail cap clicky switch- 20-lumen maximum brightness (manufacturer rated)- 1 hour runtime (manufacturer rated)- Plastic lens with smooth plastic reflector                                                                                                                                Dimensions: 3.68 in x 0.79 in x 0.79 in<br />Weight: 1.41 oz