The S14d lampholder is a popular type of light bulb socket in Europe, especially in industrial and commercial lighting applications. It is widely used due to its compatibility with linear fluorescent bulbs and its ability to provide a cost-effective lighting solution. The S14d lampholder is known for its durability, reliability, and ease of use, making it a popular choice among lighting professionals and DIY enthusiasts alike. 

Colshine S14d S14s lampholder are of good quality; the metal housing can be in black,white,bronze,chrome and other colors for options.

To use an S14d lampholder, simply insert the fluorescent bulb into the socket and secure it in place.

Before replacing a bulb, make sure to turn off the power to the lighting fixture to avoid any electrical hazards.