OTTLITE-Natural Daylight Light Bulb. Ottlite TrueColor light bulbs making lighting clear and comfortable and help reduce eyestrain. Plus you get superior color rendering and each bulb is energy efficient. Lighting from 15 watt Ottlite bulb is equivalent to 60 watt standard bulb. This package contains one 15 watt Ottlite bulb (UL Listed E243260). Imported.