Ambient

Surrounding. Such as; ambient lighting or ambient temperature.

Color Rendition

A general expression for the ability of a light source to "bring out" the "true" color of an object.

Color Rendering Index (CRI)

A numerical system of rating color rendering. The sun is considered the ideal and so has a CRI of 100.

Fluorescence

Fluorescence is the property of a material to become self-luminous when acted upon by ultraviolet energy.

Fluorescent Lamp

A low-pressure mercury electric-discharge lamp in which a fluorescing coating (phosphor) transforms some of the ultraviolet energy generated by the discharge into light.

Footcandle

This unit of illumination is defined as one lumen uniformly distributed over an area of one square foot. This means that one footcandle equals one lumen per square foot or 10.76 lux.

Megawatt

A megawatt generally is characterized as sufficient to power 1,000 homes at any given moment.

Sustainable development

Development that takes care of today's needs without compromising the ability of future generations to meet their needs. Sustained development relies on efficient use of resources, recycling, renewable resouces, restoration, growth management and other measures.