The LumeSun is a small, yet extremely efficient reflector. It is computer designed to put out a very uniform square light pattern. The internal reflective surface is made from AlumaBrite, a highly reflective imported aluminum. The socket assembly and 15 lamp cord is built into the reflector. It comes complete with tempered glass and 4'' removable air-cool fittings. It will accomodate all bulb sizes except BT-56. It measures 23'' x 11'' x 7''. Comes with a Lifetime Warranty.