The Iris Pendant Lamp transforms its form and the atmosphere in a room by changing its light direction and projections. By adjusting this lamp you can have upward pointing light, a downward pointing light, or a mixture of both. The reflective interior of this hanging lamp casts intricately patterned reflections that change as the lamp's configuration is changed. This would be the perfect light for the center of a room or above your dining room table.The Iris series lamps are the fruit of years of development of the patented overlapping leaves mechanism first explored in lightexture's Steamlight series. (Patent #8,025,430) Composed of overlapping brass leaves, each Iris Lamp has two adjustable apertures; as one opens, the other closes. When the lower aperture is fully open, light shines directly down, casting textured golden light onto the surface below. When the upper aperture is open, patterned light shines upward and bounces off the ceiling to fill the space with a warm, indirect light. The transition between these two provides a variety of reflections and light atmospheres.Marked down from $499This animation shows the range of ways the hanging brass pendant lamp's light can be adjusted:http://vimeo.com/78165844(Please note that this pendant lamp's shade adjustment is not controlled remotely, but is easily changed by hand.)The brass shade of this pendant lamp is 13" W x 13" D x 9" H. It comes with a 5' white braided cord that can be shortened during installation. (If you require a longer cord, please contact us.) The Brass ceiling plate for this hanging lamp is 5" in diameter, and can be mounted to a standard junction box. (Lamps to be shipped outside of the U.S. will be constructed with a Europe-compatible ceiling plates.)Hardware and installation instructions are included with each lamp.All electrical parts are UL recognized.The pendant light is fitted with two standard (medium base) sockets which fit standard bulbs up to 100W each. We supply with two bulbs that work together.13W LED dimmable light bulbs that are extremely efficient in their power consumption and therefore are environmentally friendly. We use Cree brand bulbs which are the best LED light bulbs we have seen yet. They give out light equivalent to a 75W incandescent bulb. Average life = 25,000 hours.43W Halogen light bulbs that create the sharpest, most defined texture possible. These light output of each of these dimmable halogen bulbs are equivalent to that of a 60W incandescent bulb. The halogen bulbs are double-shielded with clear glass for added safety. If you rather have only LED bulbs just say so in your comments. These are frosted bulbs so the light textures will be softer.We cannot provide light bulbs for customers using 220-240V electricity, but the hanging lamp does come with two standard sockets and can fit any bulb up to 100W.