3 Way A Type E2-6 Light Bulbs

A 3-way bulb is a type of light bulb that has three brightness settings, typically low, medium, and high. This is achieved by incorporating two filaments or multiple LED chips with different wattages or brightness levels into a single bulb.

To operate a 3-way bulb, it must be used in a lamp or light fixture that has a 3-way socket, which is designed to accommodate the bulb's three brightness settings. The socket has an extra contact point that allows the bulb to be turned on at a low, medium, or high level depending on the number of times you flip the light switch.