Usage Tips:About this itemTRANSFORMER: With the lamp base, you transform an E27 socket bulb into a B22 socket lamp. Assembly is easy and you benefit from great compatibility for use with many bulbs! EASY OPERATION: Just screw the adapter to your luminaire with B22 socket. Then you just 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! In addition, the plastic base is durable.COMPATIBILITY: The adaptation is suitable for all bulbs with E27 fitting such as LED, halogen and energy saving lamps.OUR RANGE: Our offer includes many other electronic devices including adapters bulbs of different types. Check it out! With the socket adapter set, your bulbs attach to your lamps again. NO MORE MESSES A mistake in 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 lamp with B22 fitting and then use your E27 bulb - and voil.COMPATIBLE WITHThe adapter is suitable for all bulbs with E27 fitting such as LED, halogen or even energy-saving lamps.TECHNICAL DATAOuter fitting: B22Inner fitting: E27INCLUDED IN DELIVERY4x socket adapter B22 to E27