What does BAY15D mean?

BAY15D (1157) PREFOCUS double contact bayonet base When one of the two parallel lugs is higher than the other one the base is named BAY15D (1157) PREFOCUS double contact bayonet base.

What does bau15s mean?

Bayonet bases or caps are often abbreviated BA, with a number after. The. number refers to the diameter of the base e.g., BAU15 is a 15mm (0.59″) diameter. offset bayonet base bulb.

What is a BA15d bulb?

BA15d Bulbs Above is our range of small bayonet cap bulbs with BA15d fittings. These bulbs have a bayonet fitting with two contacts on a 15mm base.

What is B15d?

The “small bayonet cap” (SBC or B15d) is very similar but only 15mm across. Although generally used for mains voltage lamps, the SBC fitting can also be found in a very small number of specialist low voltage halogen lamps. See our range of SBC-B15d capped lamps here.

What is the difference between B15 and B15d?

The length is including the protruding insulating material, but not including the contact or the length of the pins. For example: B15 / d19 – refers to the total length of about 19 mm B15d lamp holder. Example: B22d / 25 x 26 – refers to the total length is about 25 mm, skirt outer diameter is 26 mm B22 lamp holder.

What is the difference between PY21W and P21W?

Registered. The PY21W have offset pins while the P21W have straight pins. Both can be either amber or clear… only difference is the configuration of the pins.

What does SES bulb mean?

Small Edison Screw
The Small Edison Screw (SES E14 bulb) cap is a more compact version of its 27mm brother, commonly found on smaller reflector, candle, pygmy or golf ball bulbs. E14 small screw bulbs are often used in lamps that require smaller fittings, such as desk lamps and wall lights.

Is B22 the same as B22D?

What’s the difference between a B22 and a B22D bulb? Both the B22 and B22D style bulbs use a tabbed bayonet base and use a push and twist movement to install or remove it. The difference is that a B22 light bulb has a single bottom electrical contact while a B22D light bulb has a double-contact base.

What’s the difference between 1157 and a 2057 bulb?

The main difference between the 1157 taillight bulb and the 2057 is that the 2057 draws about 30% less current when using the running lights. They are interchangeable like you mentioned.