Practical and durable, easy to install, simply screw the adapter into your (ES) E27 E26 type socket, then screw in a B22 bayonet bulb. Ideal for LED, halogen, incandescent bulb or compact fluorescent lamps (CFL). This lamp adapter-converter allows you to choose more LED bulbs to fit your fixture or base, rather than replacing your fixtures with a new one. Resistant to high temperatures, PBT anti-scalding and anti-aging. Maximum voltage: 250 V - Max current: 2A. Package content: 3 socket extension E27 to B22. Features: Materials: Plastic, Metal. Heat Resistance: 220 Main Function: Can be widely used for family lighting, architectural, decorative or public lighting desired - For example in the bedroom, living room, rest room, kitchen, 'alley, the bungalow, the shops and the gallery, etc.