Porcelain Industrial wall lamp.White porcelain, brass and cast ironClear glass.2 conductors, no ground.Diameter wall mount 10.5 cm / 4”for use inside onlyMeasures: Weight: 2.05 kg / 4.5 lbPriced per individual item. All lamps have been made suitable by international standards for incandescent light bulbs, energy-efficient and LED bulbs. New wiring is CE certified or UL listed. 100% safe. They can be set in operation immediately.