Type of lamp cap and selection method

11-01-2020

Have you noticed the types of lamp caps? Different lamp cap types correspond to the corresponding bulbs, which cannot be mixed and used arbitrarily. If you don't know the type of lamp cap, let's take a look together.


  Type of lamp cap


  1. Pre-focusing screw cap, type 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 lamp head with two contacts, type B22D-3 (90? / 135?) / 25 × 26. This lamp cap 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. lamp cap with two flexible connectors, type K59d / 80 × 63, with a shell diameter of about 59 mm, a skirt diameter of about 63 mm, and a total length of about 80 mm.


  4. Recessed double-contact lamp cap, the type is R17d / 80 × 63, the maximum lateral dimension is 17 mm, the height of the shell is about 10 mm, and the diameter of the shell is about 35 mm.


  5. Cone-shaped shell-type lamp cap, type SV8.5-8, the diameter of the end is about 8.5 mm, and the length of the shell is about 8 mm.


  6. Telephone head, the type is T6.8, the width between the outer sides of the two contacts is about 6.8 mm.


  7. Screw head, EX10 / 13, this lamp head has additional requirements for the leakage distance. The diameter of the thread at the top of the tooth is 10 mm, and the total length is about 13 mm.


  Selection method of lamp cap type


  If it is convenient to use bulbs and other lamps in the future, it is best to choose a lamp head with good versatility. Although one lamp head type cannot be used for all lighting products, some lamp head types can still be used for most, and can be used in many occasions.


  Home users recommend the purchase of E27 lamp caps, which can be installed on most furniture lamps and lanterns, and have strong applicability. It is also the most widely used lamp cap product at present.


  In addition to the type of lamp cap, the quality of the lamp cap should also be cautious. When you buy a product, you must check the certificate of conformity and the product manual. Only with these can you prove that the product is a regular manufacturer's product, not a fake product.


  The above is an introduction to the types and selection methods of the lamp caps. I hope that everyone will be helpful after understanding the types and selection methods of the lamp caps.


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