Have you ever had the experience of replacing the light bulb? The light bulb can not be directly connected to the wire, but installed on the lamp cap, which is an important part of connecting the wire and the bulb. We all know that the bulbs come in a variety of different specifications. Different types of bulbs should correspond to the corresponding lamp caps. Otherwise, there is no way to install them, and they cannot be used normally. A friend who doesn't know the specifications of the lamp head may feel confused now. It doesn't matter. I have seen the following introductions made by everyone to know what is going on.
The meaning of the lamp head specification
Why do you have to distinguish so many specifications for 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 head specification model
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 specification 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 head model is not suitable for all luminaire products, some lamp head 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 specification model, the quality of the lamp cap 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.
Because there are too many lighting products on the market, the model of the lamp that needs to be used is very complicated. Today, we explain the basic specifications of several lamp heads. I believe it can be used as a useful reference in future purchases. The lamp holder commonly used in the home is the E27, which can be used when purchasing this model. For more details, please stay tuned for the tracking report of Xiaojiaju.com.
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