Cylinder of mouth-blown transparent glass rolled in clear crystal frit and flash heated to create this unique texture. Inner opal glass diffuser adds depth to the wall sconce. Incandescent includes (1) G9 base 60 watt halogen lamp; fluorescent includes (1) G24Q-3 base 26 watt quad tube compact fluorescent lamp. 120 or 277v.ADA compliant. 120v or 277v.