Characteristics of super bright led ceiling light fixture

   And the early stage of LED light emitting diode compared, the super bright led ceiling light fixture using LED light source, the most notable feature is the brightness increased nearly 100 times. The luminous intensity of early LED only ten to several tens of MCD, and the new LED luminous intensity minimum can be reached 1500mcd. Another significant difference is the different mechanism led color. Early LED is to obtain a certain color light colored by package materials, i.e. packaging material plays a filter function. But the new super bright LED shell is colorless and transparent resin package, the luminous body itself can produce a wavelength of light, which shows a certain color. It is widely used in outdoor billboards, electronic displays, traffic lights, signs, automobile tail light, LCD backlight.
   Spectral distribution: several current domestic color ultra bright LED spectral wavelength distribution is 460 ~ 636nm, wavelength are presented from short to long for the blue, green, yellow green, yellow, orange, red. Typical peak wavelength of several common color: blue LED -- 470nm -- 505nm, blue and green, green -- 525nm, 590nm -- 615nm -- yellow, orange, red -- 625nm.
   The luminous intensity classification: the led light panel manufacturers in accordance with the luminous intensity of LED is graded. The user can select different luminous intensity level according to the practical application of LED.
   The forward conduction voltage drop distribution: chip material early color LED GaAs, positive conduction voltage drop is about 1.8V. The different color ultra bright LED chip materials are different, red, orange, yellow LED chip material is AlGaInP, the forward voltage is 1.8V ~ 2.5V, the typical value is 2.0V; green, blue, white LED chip InGaN, the forward voltage is 2.8-4.2V, the typical value is 3.6V.

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