Hubbell cuwz-pc-htr led dark bronze nomally on ac & emergency unit, wet & cold rated, photo control self-diagnostic/self-test feature to monitor proper operation, led life cycle of > 10 years, quick installation, universay 100-300v ac input, nickel cadmium battery for us recognized 90 minute operation, full recharge within 24 hours, provided with water-proof test switch & ac-on indicator, photo control for normally-on operation, wet location listed 0-50 degrees c