The light bulb can not be directly connected to the wire, but is mounted on the lamp cap, which is an important part of connecting the wire and the bulb. We all know that there are different types of light bulbs. Different types of bulbs should correspond to the corresponding lamp holders. Otherwise, there is no way to install them, and they cannot be used normally. Let's take a look at the types of lamp models .
What is the lamp holder?
The lamp cap refers to the interface used for installing the bulb at the end of the lamp line. The electric light source mainly uses the lamp head and the lamp holder naming method. The light source is electrically connected through the lamp cap to generate a luminescence phenomenon. The light source body mainly comprises a lamp bead, a bulb, and a lamp tube, wherein the lamp tube further comprises a straight tube and a curved tube. The lamp bead is mainly the form of the light source of the LED lamp. The bulb is generally an incandescent lamp, a fluorescent lamp, a tungsten halogen lamp, etc., and the lamp is mainly a common fluorescent lamp. Most of the lamp heads are for the form of the bulb. Since the lamp beads have no lamp caps, the small lamp beads are connected together by other configurations. These configurations are equivalent to the function of the lamp cap, and the specific form depends on the design of the lamp. The place where the plugs on both sides of the straight tube are inserted is equivalent to the function of the lamp cap, and the bent tube is similar.
The meaning of the lamp head model
Why do you need to distinguish so many models from the lamp holder? Because the type of lamp refers to too much, the lamp design of different powers and different styles is different, there is no way to install it on the lamp of the same specification. Therefore, the lamp head model must also be separated, corresponding to different bulbs.
Because when buying a lamp holder, the first one is to know that we need to buy that type of lamp holder. If you buy the wrong one, you can't connect it with the light bulb, which will cause unnecessary waste. If you don't know how to determine the lamp model, tell the merchant what light bulb you want to use, and the store can find the corresponding lamp model.
Type of lamp type
1. Pre-focus screw head, model EP10/14×11. It has a crest diameter of 10 mm, a skirt diameter of about 11 mm and a total length of about 14 mm.
2. Bayonet cap with two contacts, model number B22D-3 (90?/135?) / 25 x 26. The lamp head has a diameter of about 22 mm and has three positioning pins; the skirt has a diameter of about 26 mm and a total length of about 25 mm.
3. Base with two flexible connectors, model K59d/80 x 63, with a casing diameter of approximately 59 mm, a skirt diameter of approximately 63 mm and a total length of approximately 80 mm.
4. Concave double contact base, model R17d/80×63, lateral dimension up to 17 mm, case height approx. 10 mm, case diameter approx. 35 mm.
5. Round cone-shaped lamp holder, model SV8.5-8, with a tip diameter of approximately 8.5 mm and a housing length of approximately 8 mm.
6. Telephone head, model number is T6.8, and the width between the outside of the two contacts is about 6.8 mm.
7. Screw cap, EX10/13, this cap has additional requirements for the leakage distance. The tip thread has a diameter of 10 mm and a total length of about 13 mm.
How to choose the lamp head model
If it is convenient to use the bulb and other lamps in the future, it is best to choose a lamp with better versatility. Although a lamp type is not suitable for all luminaire products, some lamp models are still available for most applications and can be used in many applications.
Home users recommend the E27 lamp holder, which can install most furniture lighting products. It has strong applicability and is currently the most widely used lamp holder.
In addition to the lamp head model, the quality of the lamp head should also be cautious. When purchasing a product, be sure to check the certificate of conformity and the product manual. If you have these, you can prove that it is a product produced by a regular manufacturer, not a fake or fake.
There are many lamps on the market, and the type of lamp that needs to be used is also very complicated. Today, I will explain to you the basic types of lamp holders. I hope to provide you with reference.
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