13w, white fluorescent regent entry light, high impact, weather resistant housing & globe, frosted lens, electronic circuit designed for sub-zero degree starts, for patio or entrance lighting, coolux technology, over 100w of light output, more energy efficient & lasts up to 5 times longer than comparable incandescent lighting, automatic light sensor, nighttime on, daytime off, energy star compliant, for replacement bulb use 13w self ballast gu24 compact fluorescent bulb. 4.5″w x 6.8″ h x 5.4″ d