The International Dark-Sky Association (IDA) is a non-profit organization that focuses on preserving and protecting the nighttime environment by reducing light pollution.

Lamp voltage is the specific electrical voltage required to power a lamp or light fixture. Lamps can operate at different voltages depending on their design and intended use.

Discomfort glare is the visual discomfort experienced when individuals are exposed to light sources or luminaires that have a higher luminance than their eyes can adapt to.

NEMA, which stands for the National Electrical Manufacturers Association, is a prominent trade association founded in 1926 that represents electrical manufacturers in the United States.

Quantity of light refers to the measurement and evaluation of the amount of light emitted by a lamp or lighting system.

A Prescriptive Rebate is a type of incentive program offered by utilities in the lighting industry. It provides financial benefits to customers who make energy-efficient lighting upgrades based on specific guidelines and predetermined amounts.

Lumens per Watt (lm/W) is a measure used to quantify the efficiency of a light source. It represents the ratio of light output (measured in lumens) to power input (measured in watts), indicating how effectively a light source converts electrical energy into visible light.

Fairy lights, also known as Christmas lights, are decorative lighting fixtures commonly used for both indoor and outdoor applications. They consist of short or long strings of lights that are connected by USB, battery packs, or solar panels.

Fixture efficiency measures how effectively a lighting fixture converts electrical energy into visible light. It is a crucial metric used in the lighting industry to evaluate the efficiency of a lighting fixture in terms of its ability to produce light output while minimizing energy losses.

Overhead lighting is a lighting setup where the light source is positioned above the subject or scene being filmed. This technique is employed to create a specific effect and add intensity to the scene.