1Prevent Corrosion: Lamp holder shell by high temperature electrostatic spraying, high temperature and corrosion resistance, anti oxidation.2Professional Design: Built in waterproof rubber circle, using high temperature resistant ceramic wick, threaded copper lamp holder, especially suitable for heating lamps.3Adjustable Temperature: This porcelain lamp holder can control the brightness of the insulation bulb, to two levels of temperature adjustment.4E27 Interface: Heat lamp holder for E27 interface, easy to install, size standard, to ensure a stable connection does not fall off, the use of more secure and stable.5Safe And Durable: Small tee ceramic lamp socket with premium heat insulation and heat dissipation, anti melting, greatly extending the service life.1 x Heat Lamp Holder