Wattage is a measure of electrical power, expressed in watts. It’s the product of one ampere (1A) of current multiplied…
A watt is the SI unit of power, which measures the rate of energy conversion. It’s equal to one joule…
Wall washing is a lighting technique that uses fixtures to project light over a large surface area with even brightness.…
Wall grazing is a lighting technique that uses light fixtures to graze surfaces of vertical walls in order to produce…
Voltage, also known as electrical potential difference or potential difference, is an electrical quantity that measures the potential energy per…
Usable Light Hours, also referred to as photosynthetically active radiation (PAR), is the amount of light that is available for…
Underwriters Laboratories (UL) is an independent, not-for-profit organization who tests and certifies products and materials for safety. Founded in 1894…
Ultraviolet (UV) radiation is a type of electromagnetic radiation that falls within the spectrum of light just beyond visible light.…
Transparent is a term that describes the degree to which light passes through an object without being scattered. In other…
Translucent is a term that describes the degree to which light is able to pass through an object. It can…