Rebaydo 2pcs E26/E27 Male to GU10 Female Ceramic Adapter Converter is designed to adapt E26/E27 Edison screw base sockets for use with GU10 light bulbs. Constructed from ceramic and copper for long service life and excellent heat resistance, this adapter is suitable for bulbs that generate higher operating temperatures. Rated for up to 2200 Watts and 220 VAC, the converter contains no electronics and transfers power directly from the E26/E27 socket to the GU10 socket through internal copper conductors. Compatible with GU10 light bulbs only. This adapter will not accept GZ10 bulbs. While GU10 bulbs can be used in both GU10 and GZ10 sockets, GZ10 bulbs are not interchangeable and will not fit GU10 sockets. Dimensions include an overall length of 1.7in and an overall diameter of 1.3in. UL, CE, and RoHS listed.