Candlepower Distribution: a curve that represents the variation in luminous intensity (expressed in candelas) in a plane through the light center of a lamp or luminaries; each lamp or lamp/luminaries combination has a unique set of candlepower distributions that indicate how light will be spread. Candlepower Distribution Curve: a curve, generally polar, representing the variation of luminous intensity of a lamp or luminaries in a plane through the light center. Center beam Candlepower the intensity of light produced at the center of a reflector lamp, expressed in candelas. Chromaticity: the aspect of color that includes consideration of its dominant wavelength and purity. Coefficient of Utilization (CU): the ratio of the luminous flux (lumens) from a luminaries received on the work-plane to the lumens emitted by the luminaries lamps alone. Color Rendering Index the measure of a light source's ability to render the color of objects "correctly," as compared with a reference source with comparable color temperature; the scale peaks at 100. Correlated Color Temperature a specification of the color appearance of a lamp relating its color to that of a reference source heated to a particular temperature, measured in degrees Kelvin (K); CCT generally measures the "warmth" or "coolness" of light source appearance.

Electrical Shop Work, Customized Lighting, Boxes, Switches, Controls, Electrics,
Enclosures and Dimming Lighting Panels. Exterior, Motion Activated and
Remote Controlled Devices made to order.

Reflectors, louvers or other shielding device cuts off direct visibility of a light source. It is the complementary angle of the shielding angle. Diffuse Lighting: light that is not predominantly incident from any particular direction. Diffuser: a device to redirect of scatter the light from a source by the process of diffuse transmission. Direct Glare: glare resulting from high luminance or insufficiently shielded light sources in the field of view, or from reflecting areas of high luminance. It is usually associated with bright areas such as luminaries, ceilings and windows that are outside the visual task or region being viewed. Direct Lighting: by luminaries distributing 90 to 100 percent of the emitted light in the general direction of the surface to be illuminated. The term usually refers to light emitted in a downward direction. (See accent .) Directional Lighting: illumination on the work-plane or on an object predominantly from a single direction. Disability Glare: glare resulting in reduced visual performance and visibility. It is often accompanied by discomfort. Discomfort Glare: glare producing discomfort. It does not necessarily interfere with visual performance or visibility. Efficacy: efficiency of a light source expressed in lumens per watt (LPW or lm/W). Energy: a measure of work done by an electrical system over a given period of time, often expressed in kilowatt-hours (kWh). Enhancing Reflections: reflections which enhance appearance described in such terms as sparkling, glittering, etc.