Mogul (screw) base light bulbs or mogul base. bulbs have larger screw bases (E39) than the standard, medium (E26) screw base bulbs.

What is the difference between Mogul and medium base?

Mogul bases are the standard for single ended (SE) metal halide lighting. Medium base is very similar to a household incandescent socket and is usually only available for lower wattages.

What size is a mogul base?

NameCodeDiameter (mm)MogulE3939 mmMediumE2626 mmIntermediateE1717 mmCandelabraE1212 mm

What is meant by Mogul base?

Definition of mogul base : an electric lamp base of larger than standard residential size.

When were mogul bulbs used?

Popular in the 1920s and 1930s, mogul lamps can be obtained in thrift or antique stores and can still be purchased new.

Is E39 same as mogul base?

E39 and E40 are both mogul or large base. The only difference between the two are the length of the center electrode.

Is E39 a mogul base?

E39 is known as the large base or mogul base. Its typically what is used on older metal halides and high pressure sodium from 100 watts and up. The E is for Edison screw base and the 39 is 39 mm across. Larger than the standard E26 or 26 mm across.

What number is a mogul base?

Light Bulbs with a Mogul (E39) Base | Bulbs.com.

What is a mogul in electrical?

Crouse-Hinds series mogul bodies are installed in conduit systems to act as pull outlets for conductors that are stiff due to large size or type of insulation. Mogul bodies provide longer openings needed when pulling large conductors and prevent sharp bends and kinks during installation.

Can you use a high pressure sodium bulb in a mercury vapor fixture?

Incandescent and mercury vapor lamps in exterior locations should be replaced with metal halide, high-pressure sodium and/or low-pressure sodium lamps.

Article first time published on

How do I know what size light bulb socket I have?

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.

How do you determine light bulb base size?

To know the base of a light bulb, identify if it is a screw type that has threads around the base, or a pin type that has 2 points of contact on the base. After that, measure the diameter of the screw base, or the distance between the two pins, in millimeters.

Are E26 and G25 the same?

The G25 shape is usually pared with a E26 (medium) base, similar to that of a standard A19 and come in outputs ranging from 25 watts to 60 watts. G25 LED Bulb Replacements G25 shaped LED bulbs now exist and are a great replacement for decorative and vanity applications.

What is mogul screw?

Mogul (screw) base light bulbs or mogul base. bulbs have larger screw bases (E39) than the standard, medium (E26) screw base bulbs.

How do I know what light bulb to get?

Bulbs shapes have an alphanumeric code. The letter tells you the general shape of the bulb and number tells you the width or diameter of the largest part of the bulb in eighths of an inch. For example, the common and well-known standard light bulb for a table lamp is also referred to as an “A19”.

What is a porcelain socket?

Porcelain lamp sockets are more heat resistant, and typically last much longer, than regular phenolic (black plastic) lamp sockets especially in applications where heat or limited air circulation may be an issue. …

What is the difference between E39 and EX39 Base?

Q: What is the difference between E39 and EX39 base? A: A lamp equipped with an EX39 base has a longer tip at the screw base. It can operate with both standard E39 and Protected EX39 lamp holders. A lamp with a E39 base will only operate on a E39 lamp holder but will not operate on a EX39 lamp holder.

What is a E39?

The BMW E39 is the fourth generation of the BMW 5 Series range of executive cars, which was manufactured from 1995 to 2004. … The high performance E39 M5 sedan was introduced in 1998, powered by a 4.9 L (299 cu in) DOHC V8 engine. It was the first M5 model to be powered by a V8 engine.

What is E26 socket?

The term E26 refers to a light bulb’s cap or base – the bulb component that allows for both electrical and mechanical contact. The letter “E” in E26 refers to Edison Screw, the most standard of lamp bases, while the numerical “26” refers to its diameter in millimeters (approximately 1 inch).

What does ED17 mean?

E17 is the base size (intermediate), a little smaller than the standard E26. ED17 is the shape of the bulb. This bulb is a medium base (E26).

What is an E40 bulb?

The GES-E40 screw cap, is a giant-sized Edison Screw cap is used in high-powered commercial light bulbs such as a HID elliptical or tubular lamps.

What is PS25 bulb?

An excellent all-purpose bulb, this 300-watt standard shape frosted PS25 light bulb is a low-priced, high output option for light commercial applications.

What are the different bases of light bulbs?

• Medium – Standard base code: E26.
• Candelabra – Base code: E12.
• Intermediate – Base code: E17.
• Pin Type Bases – Base Codes GU5.3, GU10, and GU24.

What is candelabra bulb?

The candelabra base bulb, also known as the candle or torpedo bulb because of its shape, is made for an E12 or a C7 base. With an adapter, it can fit a standard socket (the screw in base).

What size is a large base light bulb?

E26 bulbs are primarily used in North America while E27 bulbs are most popular in Europe. Bulbs with these base types can be used interchangeably as there is only a 1-millimeter difference in base size. Bulbs with these bases are the most popular of all screw base bulbs.

What is the difference between mercury vapor and high pressure sodium?

High pressure sodium produces a more neutral white light. Mercury vapor bulbs produce light with a distinct blue tint to it. In many countries, including the USA, mercury lighting is being phased out in favor of the more efficient types of HID bulbs.

Is metal halide the same as mercury vapor?

There is no difference between metal halide and multi vapor lamps because both names describe the same form of lamp. Metal halide or multi vapor lamps are a form of the light source that creates light via passing an electric arc through a gaseous mixture of mercury vapor and vapor of some metal halides.

Do mercury vapor bulbs need ballast?

As with fluorescent lights, mercury vapor lamps require a ballast to supply the proper voltage and regulate the current to the electrodes. The ballast is designed to be used with a specific size, or wattage, of bulb. … Using too small of a ballast will result in lower light output and can shorten the life of the bulb.

What light bulb base is standard?

There are four commonly used thread size groups for lamps: Candelabra: E12 North America, E11 in Europe. Intermediate: E17 North America, E14 (Small ES, SES) in Europe. Medium or standard: E26 (MES) in North America, E27 (ES) in Europe.

Are all light bulb sockets the same?

There are several of variants when it comes to the number of different lamp sockets. … There are two common socket types, which are the classic bulb socket (Edison) and the pin socket. Always check for the old socket type, otherwise the new bulb will not fit!

What is the average light bulb socket size?

The first and the most popular one is the Medium Screw Base (E26). This size is the most common for the incandescent and the LED Edison vintage bulbs. This size is the same as a standard household light bulb. The majority of the bulbs we carry are a medium base.