A bulb holder, also known as a lamp socket or light socket, is a device used to hold and connect a light bulb to an electrical power source. It's a fundamental component in lighting fixtures, lamps, and other lighting devices. Understanding the basics of bulb holders involves knowing their types, components, and how they function. Here's a breakdown:

Types of Bulb Holders:

Screw Base Holders: These are the most common type of bulb holders. They feature screw threads on the inside where the bulb is twisted in. The two main types of screw bases are Edison screw (E) and bayonet cap (B).

Pin Base Holders: Instead of screws, these holders have pins onto which the bulb is pushed and twisted to secure it. Common types include bi-pin and quad-pin holders, typically found in fluorescent and LED bulbs.

GU Base Holders: Commonly used for halogen and LED bulbs, these holders feature a bayonet-like twist-and-lock mechanism for secure bulb installation.

Socket: This is the main component that holds the bulb in place. It typically has contacts or terminals for electrical connection with the bulb.

Contacts/Terminals: These are the metal parts within the socket that make electrical contact with the bulb. They conduct electricity from the power source to the bulb.

Insulation: Parts of the socket are insulated to prevent electric shock and ensure safe operation.

Shell/Casing: The outer structure of the holder provides support and protection for the internal components.

Mounting Mechanism: Depending on the fixture, holders may have different mounting mechanisms like clips, screws, or brackets for installation.

Choosing the right type of bulb holder for your bulbs ensures compatibility and optimal performance