A true, natural daylight effect is achieved when both the incandescent and fluorescent bulbs are on simultaneously. Balanced lighting like this provides near natural color and good work lighting. Used for years in drafting, graphic arts and single desk top lighting, this versatile light provides a variety of lighting options. Standard with cool white fluorescent 22 watt bulb, it is also available in ultraviolet. Incandescent bulb not included. Bulbs operated independently. Standard on Prolite? Arms, Ultraflex? optional.