Material: Ceramic socket inside for celsius high temperature resistance, outside is PBT flame retardant material, safe and lightweight. E27 to GU10 socket adapter, ideal for replacing E27 spotlights on a ceiling light with GU10. Compatibility: E27 to GU10 socket converter. Compatible with LED bulbs, halogen bulbs, smart bulbs, energy bulbs.220V, 5A,Ideal for using GU10 bulbs configurable by bluetooth. Does the Job: E27 screw socket converter,easy to install. The E27 to GU10 adapter allows you to recover GU10 bulbs and use them on standard bases, without changing the original socket. Applications: E27 to GU10 bulb socket. Ideal for replacing classic bulbs for model making in GU10 socket! Such as sconces, chandeliers, table lamps, spotlights, ceiling lights, etc. package:6pcs lamp cap.