LED feature and advantage

Determine the intrinsic characteristics of LED is ideal light sources to replace traditional light sources, it has a wide range of uses. Small LED is basically a small chip is encapsulated in epoxy resin inside, so it is very small, very light. Low power consumption LED power consumption is very low, in general, LED's operating voltage is 2-3.6V. Operating current is 0.02-0.03A. That is to say: it does not exceed power consumption of 0.1W. Long life At the right current and voltage, LED service life of up to 100,000 hours High brightness, low heat Environmental protection LED is non-toxic material is relied upon, unlike fluorescent lamps containing mercury pollution, while LED can also be recycled. Rugged LED is to be completely encapsulated in epoxy resin inside it than light bulbs and fluorescent tubes are solid. Light and no loose parts of the body, these features make the LED can be said is not easy to damage. LED Classification 1. LED light color points according to By LED light color points can be divided into red, orange, green (also sub-yellow-green, the standard green and pure green), Blu-ray Disc. In addition, some light-emitting diode contains two or three colors of chips. According to a light emitting diode doped or not doped Department scattering agent, colored or colorless, the various colors of light-emitting diodes can also be divided into colored and transparent, colorless, transparent, colored and colorless scattering four types of scattering. Scattering-type light-emitting diodes and do light up in use. 2. Smooth out the features by sub-LED By LED features a smooth sub-round lights, side lights, rectangular, surface light-emitting tube, lateral pipes, tubes, micro-surface mount. Divided by the diameter circular lights φ2mm, φ4.4mm, φ5mm, φ8mm, φ10mm and φ20mm so. Foreign usually recorded as φ3mm LED T-1; to φ5mm's recorded as T-1 (3 / 4); to φ4.4mm's recorded as T-1 (1 / 4). Size can be estimated by the half-value angle angle round luminous intensity distribution. Angle from the light intensity distribution to be divided into three categories: (1) high directivity. Generally pointed epoxy encapsulated, or packaged with a metal reflector cavity, without additional scattering agent. Half-value angle of 5 ° ~ 20 ° or less, with very high directivity, can be used for partial lighting, or light detection devices in conjunction with automatic detection system for the composition. (2) standard. Normally used for light, its half-value angle of 20 ° ~ 45 °. (3) scattering type. This is a large light angle, half-value angle of 45 ° ~ 90 ° or more, a large amount of scattering agents. 3. Divided by the structure of light-emitting diode By light-emitting diode structure is divided into full epoxy encapsulation, epoxy encapsulation base metal, ceramic and glass base epoxy encapsulated package structure. 4. By light intensity and operating current points By light intensity and operating current is divided into ordinary brightness LED (light intensity 100mcd); the luminous intensity between the 10 ~ 100mcd called high-brightness light emitting diodes. General LED mA operating current in more than a dozen to a few mA, and low current LED's operating current in the 2mA or less (normal LED brightness and the same). In addition to the above classification, there are classified according to chip material and method of classification by function