Strain relief refers to a device or mechanism that is utilized to alleviate tension or stress on wires and electrical connections.

HPS, which stands for High Pressure Sodium, is a type of grow light widely used in indoor gardening and horticulture. These lights are specifically designed to stimulate plant growth by emitting a specific portion of the electromagnetic spectrum that is ideal for photosynthesis.

A ceiling light is a lighting fixture that is specifically designed to be mounted on or near the ceiling to provide general illumination in a room.

Radiant energy refers to the electromagnetic energy that is propagated through space in the form of transverse waves. It is a type of kinetic energy associated with the motion of electromagnetic waves.

Current is the flow of electric charge through a conductor. It is a measure of the rate at which charge moves and is typically expressed in units of amperes (A).

ESCO, which stands for Energy Service Company, is a specialized entity within the lighting industry that focuses on providing comprehensive energy efficiency services and solutions to customers.

The cut off angle of a luminaire is the angle at which the light emitted from a luminaire is directed and controlled.

Direct glare is a visual sensation caused by excessive and uncontrolled brightness in one’s field of view. It occurs when there is a significant contrast in brightness between different objects, resulting in a strong glare that can impede a person’s ability to perceive details and objects clearly.

In the lighting industry, the term “Gu” refers to a specific type of bulb base used for various lighting fixtures. The “G” in Gu stands for “multiple pins as a connector,” indicating that the bulb has more than one pin for connecting to the socket.

“Long Life” in the lighting industry refers to the extended lifespan of LED light fixtures compared to traditional incandescent bulbs. LED light fixtures have been tested to last as long as 100,000 hours, which is significantly longer than the approximately 1,000 hours of lifespan for incandescent bulbs.