Designers Edge L1767BZ Fluorescent All Metal Dusk to Dawn Security Light with 12-Inch Acrylic Reflector, 65-Watt, Bronze Durable die-cast aluminum construction 12-Inch acrylic reflector Output equivalent to 300-Watt halogen bulb - uses 65-Watt Dusk to dawn button photo cell and electronic ballast works in lower temperatures-minimum -20-Degree 4300-Lumen output, Lumen is a measure of light output, -Watt is a measure of electricity used.