We are pleased to be the premier photographic supplier of Square Perfect photo equipment, studio kits, lighting solutions and accessories. We have combed the world over for the most robust, highest quality, full-featured photo products available. These lamps/bulbs are no exception. WHAT IS INCLUDED? 50 Watt 3000K tungsten light bulb with holder and legs. Optimal color temperature makes this bulb perfect for photography. These bulbs are highly rated and recommended for use with Square Perfect solutions.