8 Light Bulb Base Types – Classify Them By Function & Quality

In daily life, this common form of the cellar is referred to as a “minion” mostly used in small and regular incandescent lamps.

These lamps have an incredibly broad application range. The lamp is famous for its candle-shaped, pear-shaped, water-drop form, its sphere, its shape.

The base type of lamp E27 is Edison’s best-known, most common, and popular commodity.

So what is the Edison screw base? This is the oldest type of lamp mounting, invented by scientists.

This facility is easiest to use, most often it is used in household appliances. They denote this type with the letter Exx, where xx is the size of the diameter in millimeters.

The size of this basement is different:

1. GES – large;
2. ES – medium;
3. MES – shrink;
4. SES – Minion (small base);
5. LES – micro ball.

The socles fluorescent lamps also have lace and pin. The most important is! E27 cap fluorescent lamps do not work in circuits that contain dimmers and electronic switches.

E27 bulbs are most commonly used in Europe, while E26 bulb bases are used more in North America.

The two types differ only by 1 mm, so they can be used interchangeably both in terms of base size and current, the most common being the bulb E27.

Some LED bulb products use E27 lamp holders: SBHL512 Duhal, SBNL575 Duhal, SBNL810 Duhal

You can find both in today’s LED bulb E27 or incandescent and fluorescent bulbs in the past very easily.

They are typically used in standard lighting fixtures typically outdoor lighting, ceiling lights, or even factory lights.

E27 bulbs also come in many different shapes, the most common being:

• Globe-shaped bulbs: G30, G25, G16.5
• A-shaped bulbs: A19, A15, A21…
• PAR (aluminized reflector) floodlights and flood bulbs: PAR16, PAR20, PAR30, PAR38]

*** Refer to more article: https://en.wikipedia.org/wiki/Edison_screw

BR headlights and headlights (inflated reflector): BR20, BR30, BR40.

If we list the types of lights used for decorative lighting, it is impossible not to mention Bulbs with base E12 List there are many, such as wall-mounted, decorative lights, Christmas lights, or even lights sleep. Many of the stands of these bulbs are designed to resemble the appearance of a candle.

• Small tubular bulbs: T8, T6, T22
• Small globe-shaped bulbs: G14, G16, G50

But most popular in Europe and China people use bulbs with E14 base bases.

The most commonly used designs are Christmas lights, chandeliers, wall lights, commercial incense lights, or even in civil use …

1. Candle bulbs: C7, C9, CA10, B10
2. A-shaped bulb: A15
3. Small tubular bulbs: T8, T6, T22

Like candle bulbs with E12 bases used for applications such as wall lamps, chandeliers, decorative lights, bulbs with E17 bases as well.

Bulbs with these bases are often used in conjunction with microwave lamps, fridge lamps, and range lighting which are considered specialized appliances.

They are also found abundantly in ceiling fan lights that come with small A-shaped bulbs.

1. Candle-shaped bulbs: C7, C9, CA10, B10
2. A-shaped bulb: A15
3. Small globe-shaped bulbs: G14, G16, G50
4. Small tubular bulbs: T8, T6, T22

In North America, people often use E39 bulbs mainly to replace HID bulbs with industrial lightings, such as warehouse lights, factory lights, parking lights…

LED bulbs with these bases to have the shape of the ED and BT HID cylinders since they resemble popcorn, are called a corn lamp.

1. Elliptical bulbs: ED17, ED28, ED37
2. Tubular bulbs: BT37, BT56
3. Aluminized Parabolic Bulbs: PAR20, PAR38, PAR40

The LED bulbs using this cap often have ED and BT HID cylinders, also known as corn lights because their shape is very similar to corn.

This mounting type is specifically designed for miniature halogen lamps that are used for maximum decorative effects in the room due to the point light coming from different parts of the ceiling.

Halogen lamps are typically low voltage and suitable for either 12 or 24 volts.

Such lights are very comfortable, have a flat shape on the outside, and look pretty good on ceilings with built-in lights, as well as inflexible lighting systems.

These practical products can last more than 2000 hours.

Today, G4 lid lamps are commonly used in diamond-studded crystal lamps.

This type is equipped with a pair of round pins to attach to the slot of the corresponding cartridge.

Fixing the lamp in this case requires a quarter of the turn. The outside diameter is specified in millimeters, for example – B9s.

Such caps are often used in automotive and on-ship lights to create embedded or primary beams – asymmetric side-mounted contacts hold the lamp in the cartridge at the right angle, allowing you to focus the flux light depending on the respective needs.

Types of LED sockets: LED GU10, JDR E14, LED GU5.3, JDR E27, PAR30, PAR38, MR11, T5, T8, and others.

LEDs barely heat up, so they are used when the other types simply do not match the temperature conditions of the surface.

Generally speaking, the modern industry produces non-standard lamp bases, for example, projector lamps or xenon lamps.

If we talk about the lamp switch, then in Western countries for a long time, use less dimensional products with the T4.5 caps, instead of T6.8.

The latest W type typically contacts the cartridges with current inputs placed directly on the lamp glass base.

The lamp base light types are continuously improved. Nowadays there is a tendency to replace incandescent bulbs with semiconductor products of similar size. Advantages of semiconductors.