The porcelain lamp holder is complete with a plastic cable clamp, ready to bring color and style to any space. Material: Porcelain  Dimension: Ø4.5 x H6 cm  Fitting: E27  Kit consists of - 1 E27 porcelain bulb holder and a black or white plastic cable clamp Colours Available: White, Black, Grey & Green Be sure to also look into our wide section of ceiling roses, bulbs and cables to finish off your own very unique lighting. N.B. This lamp holder has a security locking device that, in order to protect you from electrical shocks while you are changing the light bulbs, does not allow it to unscrew.  If the necessity to unscrew it should present, it is possible to unblock it by pointing at the security flap you will find at the base of the lamp holder with a screwdriver, while you are turning the lamp holder. Always ensure the electricity is switched off when dealing with the bulb holder.