A vintage light bulb, also known as an antique bulb, is a type of lighting fixture that replicates the look and feel of early 20th-century bulbs.

Epact, short for Energy Policy Act (EPAct), refers to a legislation enacted in 1992 with the aim of promoting energy efficiency in the lighting industry.

Emergency lighting refers to battery-backed lighting devices that are specifically designed to activate during power outages or when a lighting circuit fails.

A wake-up light, also known as a sunrise alarm clock, is a specialized lighting device used to simulate the natural sunrise and aid in waking up gradually and peacefully.

Visual comfort probability (VCP) is a term to measure the acceptability of discomfort glare in a lighting system. It is expressed as a ratio, represented as a percentage, of individuals who are likely to find the level of glare in a specific location and direction acceptable.

Cornice lighting, also known as soffit lighting, is a method of concealing the light source behind a dropped cornice from the edge of the ceiling.

Saturation, in the context of the lighting industry, refers to the intensity or purity of a color. It is a measure of how vibrant and vivid a color appears.

Loop lighting is a lighting pattern commonly used in portrait photography. It is achieved by positioning the key light at a 45-degree angle to the side of the subject and raising it just above their eye line.

A candelabra bulb is designed to resemble a candle flame. These bulbs are commonly used for decorative purposes, particularly in chandeliers and other fixtures where visual appeal is important.

Light color is the specific color appearance or color temperature of a light source. The color appearance of light is measured using the Kelvin scale, which ranges from 1,000 Kelvin to 10,000 Kelvin.