Rigel Systems Skylite Mini, Switchable 2-Red / 2-White LED Flashlight DUAL Ultra-bright LEDs... The best and the brightest with lifetimes of 100,000+ hours, never break, and provide smooth illumination. Thumbwheel Brightness Control...Dial up just the right amount of light and extend battery life. Energy Efficient... Up to 320+ hours at the dimmest setting, 12+ hours at the brightest, from one 9V Alkaline.