Colour Temperature When the chromaticity of a light source is the same as that of a blackbody at a certain temperature, the absolute temperature of the blackbody is the color temperature of the light source. Also known as "color." The unit is on (K). Correlated Colour Temperature When the color point of the light source

Unified Glare Rating (UGR) A psychometric parameter used by The Commission Internationale de L'Eclairage (CIE) to measure the subjective response of people’s eye discomfort of light emitted by a lighting device in a visual environment Glare Rating (GR) A psychometric parameter used by The Commission Internationale de L'Eclairage (CIE) to measure the subjective response of

Stroboscopic Effect In the light irradiation of certain frequency change, observing the different movement of objects  from its actual movement. Light Emitting Diode Lamp A semiconductor device that emits light from an electroluminescent solid as a light source for an illumination source. Distribution of Luminous Intensity Using a curve or table to show the luminous

General Lighting Also known as "background lighting" or "ambient lighting", is the basis of a lighting plan, refers to the non-directional lighting full of a room, providing a generally adequate lighting foundation for all activities in the room. Localized General Lighting The upgrated version of the general lighting, designed different levels of illumination for