XiXi Shop Description TRANSFORMER: Thanks to the lamp base, you transform an E27 socket bulb for a B22 socket lamp. Assembly is easy and you benefit from great compatibility for use with many bulbs! EASY OPERATION: Simply screw the adapter to your fixture with B22 socket. Then you only have to use the assembly with an E27 type bulb. 4 TIMES MORE: The set includes 4 adapters. Convert multiple E27 bulbs for maximum light in your home! Plus, the plastic base is durable. COMPATIBILITY: The adaptation is suitable for all bulbs with E27 fittings such as LED, halogen and energy saving lamps. NO MORE WASTEA mistake on a bulb choice can easily happen. With this accessory, convert a B22 socket into an E27 socket and use the bulb as you wish. LIGHT EVERYWHERE: With these four adapters, light up your desk lamp, bedside lamp, ceiling lamp and floor lamp. Enjoy a well-lit home! INSTALLATIONSimply screw the adapter to a B22 fitting lamp and then use your E27 bulb - that's it. COMPATIBLE WITHThe adapter is suitable for all E27 bulbs such as LED, halogen or energy saving lamps. TECHNICAL DATA External connection: B22 Inner fitting: E27 4x B22 to E27 socket adapter