What are the different types of bulb sockets?
About Light Bulb Base Types
- E39 – Mogul.
- E26 – Medium.
- E17 – Intermediate.
- E12 – Candelabra.
- E11 – Mini Candelabra.
- E10 – Miniature.
- E5 – Midget.
What is E27 and B22?
You can also purchase our bulbs in an ‘E27’ base. This is similar to the E14 in the way that they are both Edison Screw bases. However, the ‘E27′ has a larger 27mm diameter base as indicated by the ’27’ suffix. You’ll also come across ‘B15’ and ‘B22’ bulbs in which the ‘B’ denotes a ‘Bayonet’ base.
What are the different size sockets for light bulbs?
(For example, E12 has a diameter of 12 mm) There are 4 common sizes of screw-in sockets used for line-voltage lamps:
- Candelabra: E12 (diameter of 12 mm)
- Intermediate: E17 (diameter of 17 mm)
- Medium or Standard: E26 (diameter of 26 mm)
- Mogul: E39 (diameter of 39 mm)
How can you tell what Socket A light bulb is?
The first letter designates the shape or form of the base, and the number represents the width of the base (normally in millimeters). For example, our 11S14 bulb has an E26 base — the “E” refers to the style which is an Edison screw-in, and the 26 means it has a 26 mm base width.
What are bayonet light bulbs?
Bayonet Caps (Twist and Lock) Also known as the ‘twist and lock’ bulb, a bayonet cap bulb has two pins which retract and then expand into slots inside the fitting when twisted. Standard bayonet cap bulbs are 22mm in diameter (B22d), but there are smaller (SBC) sizes available.
What is bc22?
22mm Bayonet Cap GLS Light Bulbs Available as Incandescent and LED. BC: Quite simply, this is the abbreviation for Bayonet Cap and is in reference to the type of fitting the bulb has. B22: This is exactly the same as BC but the width is also indicated, B for Bayonet and 22 for the width of the cap in millimeters.
What is the difference between E11 and E12 bulbs?
E11 (mini candelabra) is 11mm in diameter and is a bit smaller than E12 (candelabra) which is 12mm in diameter. E11’s are most commonly used for small, halogen (hot!) bulbs and E12’s for decorative lights.
Is E27 bulb screw or bayonet?
E27 or ES or ‘standard screw’, where the diameter of the light bulb cap is 27mm. E14 or SES or ‘small Edison screw’, where the diameter of light bulb cap is 14mm. B22 or Ba22d or BC or ‘bayonet cap’, where the diameter of the light bulb cap is 22mm.
Are all bayonet bulbs the same?
Standard bayonet cap bulbs are 22mm in diameter (B22d), but there are smaller (SBC) sizes available.
How are light bulbs locked in a bayonet socket?
The light bulbs that are used in bayonet sockets are pushed in then turned slightly to lock into place. The bulb’s base has two pins on either side while the socket has two corresponding L-shaped slots and a small spring to keep the two locked together.
What are the different types of light sockets?
Type of Sockets: There are different types of Socket available in market. Bayonet Cap Base (B) Edison Screw Cap Base (E) Single Pin Type Base (F) Bi Pin or Multi Pin Type (G) Cable Connections (K) Pre- focused Light Base (P)
How did the bayonet socket get its name?
Instead, the glass of the bulb tapers down to a point to seal it. Two wires extend from the bottom of the base and act as contact points. Fairly uncommon in household lighting in the United States, bayonet sockets are named after the bayonets used on rifles because they have a similar connection method.
Why was a 3 pin bulb used for a bayonet?
Older railway carriages in the UK also made use of a 3 pin bulb base to discourage theft. Bayonet cap bulbs are also very common worldwide in applications where vibration may loosen screw-mount bulbs, such as automotive lighting and other small indicators, and in many flashlights.