1. Material: It has a ceramic socket inside for high temperature resistance in Celsius, and the outside is made of PBT flame retardant material, which is safe and lightweight. It is an E27 to GU10 socket adapter, suitable for replacing E27 spotlights on a ceiling light with GU10. 2. Compatibility: It is an E27 to GU10 socket converter. It is compatible with LED bulbs, halogen bulbs, smart bulbs, and energy bulbs. It is 220V, 5A, and suitable for using GU10 bulbs configurable by bluetooth. 3. Does the Job: It is an E27 screw socket converter and is easy to install. The E27 to GU10 adapter allows you to reuse GU10 bulbs and use them on standard bases without changing the original socket. 4. Applications: It is an E27 to GU10 bulb socket. It is suitable for replacing classic bulbs for model making in GU10 socket! For example, sconces, chandeliers, table lamps, spotlights, ceiling lights, etc. 5. Package: 6 pcs lamp cap.