UGR (Unified Glare Rating)： The International Commission on Illumination (CIE) is used to measure the psychological parameters of the subjective response to discomfort caused by the light emitted by the lighting device in the indoor visual environment.
Lumen: It is a unit of luminous flux. Physics is interpreted as a candle (cd, Candela, unit of luminous intensity, equivalent to the luminous intensity of an ordinary candle) on a solid angle (a unit ball with a radius of 1 meter, a ball corresponding to a 1 square meter ball cap) The angle represented by the cone corresponds to the total emitted luminous flux generated on the central angle of the mid-section (about 65°). Generally Speaking, More lumens means more light output.
Color Index: The color rendering ability of a light source to an object is called color rendering, which is compared with the appearance of the object under the same color temperature or reference light source (incandescent lamp or painting light). The theoretical color rendering index of incandescent lamps is 100, but there are many kinds of incandescent lamps in real life and their applications are different, so their Ra values are not completely the same, it can only be said to be close to 100, which is the lamp with the best color rendering.
SMD LED: SMD LED means surface mount light-emitting diode. These are more compact, more powerful, and last longer than the older generation of LEDs. The lamps of Getled lighting almost always contain the latest SMD LEDs.