Low Energy Light Bulbs Equivalent Wattage – The caps that sit on the foundation of a light bulb are equally as important as the bulb. True, those little metal fixtures might appear rather insignificant due to their size but their significance is that they dictate which bulbs may be fitted to which light fixtures. Without the right cap, the space, alleyway, stairwell or bathtub will stay in the dark.
With the range of lights that can be found in the marketplace today, there are very definite specifications to make sure that the right bulb is fitted. For instance, both pin, or bi-pin, the cap on some lights can only be placed in bi-pin light sockets, therefore gu10 LED bulbs cannot be set in a light socket which isn’t designed for the gu10 cap. But, there is more than 1 kind of bi-pin cap, together with the cap on g9 halogen bulbs significantly different in appearance and design, and utilized exclusively with particular kinds of halogen bulbs.
The main reason for a cap is to allow electrical contact between the electrical supply and the light itself, without leaving wiring and electronic elements vulnerable. The metal pins make immediate contact with the electricity source, allowing the electricity to flow through the filament, creating the necessary power to cause the light to shine and provide the required illumination.
The entire range of caps is extensive, but they can be divided up into three main kinds, namely the bayonet, the Edison screw and the bi-pin. |} Bayonet Cap This is arguably the most identifiable cap and is more often than not found on the ordinary incandescent bulb selection for national lighting, though energy saving lighting also feature this cap to allow easy switch over to greener home lighting.
The design 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 at the side of the socket, to hold the bulb in place. The name bayonet is derived in the thrust and spin action that’s necessary to fit them.