A light switch is a device that controls the flow of electrical current to a light fixture. It serves as a mechanism for turning the light on or off.

A translucent material is a type of material that allows partial transmission of light. Unlike transparent materials that enable clear visibility, translucent materials scatter and diffuse light as it passes through them.

A smart light bulb is an internet-capable LED light bulb that allows for customization, scheduling, and remote control of lighting. It is a type of home automation and Internet of Things (IoT) product that has gained popularity in recent years.

Flat lighting refers to a style of illumination that produces minimal depth and contrast in a scene. It is commonly utilized in both photography and film/video.

An LED module is a self-contained device that houses multiple LED bulbs connected to a fixture or a battery for power.

Luminance is the amount of light that is emitted, transmitted through, or reflected from a surface. It is a measure of the brightness or intensity of light and is typically expressed in candela per square meter (cd/m²) or nits.

In lighting, frequency is the rate at which a light wave oscillates or cycles per second. It is a fundamental characteristic used to describe different types of light within the electromagnetic spectrum.

Supplementary lighting is the practice of using additional artificial light sources in conjunction with natural light to enhance or supplement existing lighting conditions.

Lamp lumen depreciation (LLD) is the gradual decrease in the amount of light emitted by a lamp over its lifespan which describes the reduction in lumen output over time.

Rapid Start (RS) is a type of ballast commonly used in fluorescent lighting systems designed to apply a low filament voltage to preheat the cathodes within the lamp.