Complete Guide on Parts of a Lamp: Names, Functions & Diagram

As we know, the lamp provides a more elegant vibe to our homes, especially in the bedroom. It is exciting from 7000 B.C to 21 century. With time some improvements in it give us a more pleasant vibe. Technology is also a key aspect of such evolution in this type of lamp. Due to its regular use of it, there are chances of breaking down the lamp parts. From a repair point of view, we must know the parts of a lamp. This article gives you all information about all these parts and their locations.

Lamp Parts Diagram

Lamp Parts, Names, Diagram

Parts of Lamp Names

  • Lampshade Fitting
  • Lampshade
  • Bulb
  • Lamp Holder & Socket
  • Harp Holder
  • Threaded Tube
  • Switch
  • Power Supply
  • Body
  • Base

Lamp Parts with Functions

Lampshade Fitting

It is a frame of the lampshade which is called as top of the lamp & mounts on the lampshade fitting.


The lampshade is nothing but the cover of the lamp. The function of a lampshade is to protect people from the high brightness of the bulb.

It affects the lamp’s aesthetic because it comes in various designs, shapes, and colors.

Generally, it is made of fabric, metal, glass, or threaded tubes. It supports through a harp holder. This harp holder is connected to the lamp body through the threaded tube.

The shape and style of lampshade may be a classic drum, taped drum, shallow drum, shallow tapered drum, classic oval, classic empire, galley empire, bell, horn, cut corner inverted square bell, sharp square bell, or sharp corner square tapered.


As we know, the bulb is the heart of any lamp. Without a bulb, the lamp will not work. Usually, a standard bulb of 120W has generally used in all types of lamps.

Nowadays, some LED and halogen bulb are long-lasting and energy-efficient as it saves energy 10 times of standard bulb.

In decorative lamps, there are some bulbs which are having unique shapes. They have different color lights, which provide an elegant look for such type of decorative lamp.

Lamp Holder and Socket

These are also the main parts of a lamp because it secures the connection between the lamp and the holder.

This holder includes a mechanism such as a thread and a pin that create a secure connection. The bulb is inserted in the socket, which will help to blow the light.

Many holders and sockets are available depending on the type of bulb. Following are some common types of holders and sockets.

  • Bayonet-Base Holders: This socket has two pins that act as a locking system that locks the bulb inside the holder.
  • Compact Fluorescent Holders: CFLs must have a ballast to work. While some bulbs have an internally integrated ballast, others must have a ballast somewhere in the lighting circuit

Harp Holder

A Harp holder is used to hold and support the lampshade and bulb.

Threaded Tube

A threaded tube is an optional part of a lamp typically used to connect the body, base, and anti-slip material to each other.

This tube has an outer thread that engages with the internal thread of the body, base, and anti-slip material.


As we know, the main function of the switch is to turn the OFF and ON the bulb. Generally, the switch comes within the lamp, or it may be wall-mounted.

The switch is the electrical component that completes the electrical circuit.

Many types of switches come with the lamp, maybe a push-button, toggle switch, or rocker switch. This switch comes with two positions, ON and OFF.

Nowadays, some switches i.e. a dimmer switch and variable brightness bulb, control the bulb brightness.

Due to great technological evolution, the switch comes with a touch-activation facility. When we touch the switch it automatically ON and OFF the light or some switches may manage the brightness of the bulb.

Power Supply

It is the source of power to blow the lamp and this power comes from the electrical distribution center through cables. Some lamps have a light fixture, which fits the ceiling or wall of the house. 

Some of the rechargeable lamps with batteries can recharge by an electrical supply. This portable lamp is more useful as we can carry it anywhere.

Some lamps, such as street lamps or garden lamps run on the solar cell. It charges with solar energy received from the sun.


The lower part of a lamp is generally called the body. Typically the body is made up of a specific type of wood or metal which improves the aesthetic.

In a decorative lamp, the shape and design of the body play an important role.


The base is the place where the lamp stands out. The material of the base is ]robust & rigid. Some bases come with a hinge mechanism.

It plays a vital role in fictional and aesthetic perspectives. There is anti-slip material on the bottom, which prevents the lamp from slipping out.

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