Bayonet Cap Fitting Types

If your light fittings don t take screw cap bulbs odds are they require bayonet cap bulbs.

Bayonet cap fitting types.

This section shows many of the most popular fittings. They are used in a variety of lighting around the home and one of the most common types of fittings. Bayonet cap named for a fitting design that utilizes the same push and twist action used by soldiers to mount bayonets to their rifles a bayonet cap is the most commonly used base in the uk. The commonly used bulbs in the uk.

Also known as the twist and lock bulb a bayonet cap bulb has two pins which retract and then expand into slots inside the fitting when twisted. Caps provide the electrical contact to conduct electricity to the light bulb but it also helps to secure the light bulb into its fitting. The slots are shaped like a capital letter l with. There are many variations of a bayonet cap including some three pin versions known as b22d 3 found in new build homes and on some high pressure mercury lamps for industrial use.

There are a vast variety of caps and bases that exist in order to help make sure that only the correct type of lamp is used in any given fitting. The most common code is for bayonet caps is b22. Bayonet caps and gu10. There are two main types of bayonet bases.

Standard bayonet cap bulbs are 22mm in diameter b22d but there.