Specification: Bulb type:E27 Voltage:AC110-240V Current:4A Size:117*25mm Feature: Durable anti-burning PBT material , heat-resistant & erosion-resistant , Heat-resistant, anti-burning, no Fire Hazard. Easy installation-No need tools to install, just screwing into existing socket., extend your current E27 screw mount / fixture. Very useful product, save you a lot of trouble and money of replacing your original lighting fixtures. Best for CFL (fluorescent lamps) and LED bulbs Package included: 1*e27 to e27 bulb adapter