Philips Energy Saver Compact Fluorescent 14-Watt Dusk to Dawn automatic post light is ideal for use in enclosed post light fixtures. It has a soft white light, similar to incandescent light, with a built-in photosensor to turn the light on at dusk and off at dawn. This 14-Watt Dusk to Dawn post light bulb replaces your current 60-Watt incandescent A19 and lasts at least 7 years.