★【Material】: CE certified, flame retardant material plastic, safe and lightweight. DOES THE JOB. E27 to B22 conversion adapters, convenient to use old bayonet bulbs from old apartment. Allows you to use B22 bulbs in E27 socket. ★【Compatibility】: E27 to B22 socket adapter. Compatible with energy saving lamp and B22 bulb with pins less than 60W, not suitable for incandescent and heating lamps (UVA, UVB, etc.). This E27 B22 adapter allows you to use a "stock" of bayonet bulbs. ★【Function】: E27 to B22 socket converter. Easy to install, just screw the B22 bulb onto the adapter, then screw the assembly onto the lamp equipped with an E27 socket. Screw/bayonet adapter, used to connect the B22 bulb to the E27 socket. ★【Applications】: Adapter for the bulb with lugs (E27 to B22). Useful if you still have B22 bulbs at home to adapt to new E27 light fixtures. Such as wall sconces, chandeliers, path lights, etc. A great way to use up old bulbs stored in the basement at low cost! ★【NOTE】: You may