Elegance Exotic Wood Flooring Harvest Maple – The caps that sit on the base of a light bulb are equally as crucial as the bulb. True, those little metal fittings may seem fairly insignificant given their size but their importance is such that they dictate which bulbs may be fitted to which lighting fittings. Without the right cap, the room, alleyway, stairwell or backyard will remain in the dark.
With the range of lights available in the marketplace today, there are very definite specifications to ensure that the right bulb is fitted. For example, both pin, or bi-pin, the cap on some lights can only be put into bi-pin light sockets, so gu10 LED bulbs can’t be set in a light socket that isn’t meant for your gu10 cap. However, there is more than 1 type of bi-pin cap, with the cap on g9 halogen bulbs considerably different in appearance and design, and used only with certain types of light bulbs.
The main reason behind a cap is to allow electrical contact between the electrical supply and the lighting itself, without leaving wiring and electronic aspects exposed. The metallic pins make immediate contact with the power supply, allowing the power to flow through the filament, producing the necessary power to create the light to shine and provide the necessary illumination.
The full range of caps is extensive, but they are sometimes divided up into three principal types, namely the bayonet, the Edison screw and the bi-pin. |} Bayonet Cap That is potentially the most recognizable cap and is more often than not discovered on the ordinary incandescent bulbs selection for domestic lights, although energy saving lights also feature this cap to allow simple change over to counter house lighting.
The design is a simple vertical cap at the bottom of the bulb with two ears, or tiny hooks, protruding from the side. These two pins lock at the face of the socket, to hold the bulb in place. The name bayonet is derived in the thrust and twist action that is needed to fit them.