LED Spot Light Fittings come in two major classifications, which vary as you move down a certain group. By definition, a light fitting is the place where the bulb and the bulb stand or holders merge to hold the bulb in place. Mostly, you will find them accepting either screw forms of pin forms. Although this classification is not conclusive, all of the fittings can fall into either of the two. The light fitting not also serve the prime purpose of holding of the bulb in place, it is also a way of expressing your personal taste for design. Some will love the pins while others seem to go for the screws.
The pin fitting are the most common, predominated by the Bayonet Caps. Bayonets have small pin projections from the side of the cap; will be resting on grooves made in the bulb holder to keep the bulb in place. They are common because most of the previous bulbs like halogen had this pin. Therefore, to reduce on the cost of replacing the bulb holder when buying need energy saving bulbs, these Light Fittings were maintained. You will be doing a ‘push and turn’ with this types of LED Spot Light Fittings.
The other LED Spot Light Fittings is the newer Edison Screw Cap. As the names suggests, this is made to fit into the holder like a screw. The pioneer of such fitting, Thomas Edison, suggested the idea. Gaining popularity because of its elegance and safety, most of UK people and Americans are turning to it. It comes in different sizes, but the shape and fitting is similar. These are the two main types but others exist and you will find them. Open of those is one that has two pins projecting from below the bulb, usually meant upright fixing on walls.