120v 60hz Ac Only Light Bulb – The caps that sit on the base of a light bulb are just as important as the bulb. True, those tiny metal fittings might appear fairly insignificant due to their size but their importance is that they dictate that bulbs may be fitted to that light fittings. Without the ideal cap, the room, alleyway, stairwell or bathtub will remain in the dark.
With the selection of lights available in the marketplace nowadays, there are very definite specifications to make sure the ideal bulb is fitted. For example, the two pin, or bi-pin, the cap on some lights can only be put in bi-pin light sockets, therefore gu10 LED bulbs cannot be placed in a light socket that isn’t meant for the gu10 cap. However, there’s more than one type of bi-pin cap, together with the cap on g9 halogen bulbs significantly different in design and appearance, and used exclusively with certain types of light bulbs.
The main reason for a cap would be to permit electrical contact between the electric supply and the light itself, without even leaving wiring and electronic aspects exposed. The metallic pins make immediate contact with the electricity source, allowing the electricity to flow through the filament, producing the essential power to cause the light to shine and provide the required illumination.
The full selection of caps is extensive, but they are sometimes divided up into three principal kinds, namely the bayonet, the Edison screw and the bi-pin. |} Bayonet Cap This is potentially the most recognizable cap and can be more often than not discovered on the normal incandescent bulb selection for domestic lights, though energy saving lights also contain this cap to permit simple switch over to greener home lighting.
The layout is a simple metallic cap at the base of the bulb with two ears, or tiny pins, protruding from the side. Both of these pins lock into slots at the side of the socket, to hold the bulb in place. The name bayonet comes in the thrust and spin action that’s needed to fit them.