As rushing headlong into mass action of the markets, as consumers, selection of LED continues to cool, scientific analysis, selection of price/performance of the best light source and lighting, here are some basic properties of LED:
1, brightness of LED brightness is different, different prices. Laser grade ⅰ LED lamps LED should be consistent with such standards.
2, anti-static antistatic strong LED, long life and high prices. Usually antistatic LED to greater than 700V for LED lighting.
3 wavelength, wavelength coherent LED, line color, if the same color, the prices high. No LED light color separation instrument manufacturers are difficult to produce color pure product.
4 conductive illuminant of LED, leakage current is a one-way, if there is a reverse current, it is called leakage, leakage current in LED, short service life, low price.
5, wide viewing angle uses different LED light at a different angle. Special wide viewing angle, high prices. Such as diffuse point, higher prices.
6, different key to the quality of life is life, life is determined by light fades. Low optical attenuation, long, long life and high price.
7, chip LED illuminant for chip, different chips, prices vary considerably. Japan and the United States wafer more expensive, Taiwan and domestic chip prices lower than Japan, the United States.
8, wafer size chip size in edge length, much better quality than smaller chip LED the chip. Price is proportional to the size of the chip.
9, Colloid colloids of ordinary LED General epoxy resin, plus UV resistance and fireproofing agent LED to higher prices, Outdoor LED lighting should be of high quality UV-resistant and fire. Each product will have a different design, different designs for different purposes, reliability of LED lighting designs include: electrical safety, fire safety, the application of environmental security, safety, health and safety, security, time and other factors. From the perspective of electrical safety, which should be in conformity with the relevant international and national standards.
Because the LED is new products, China national standard lag, but the State providing qualified products testing. With international safety certifications (including GS, CE, UL, etc) and LED lighting of the national product quality certificate of higher prices, because these products are reliable in safety design. Consumer attention is to carefully identify the authenticity of the certificate, there is now international security manufacturer is not national product certification and certification.
From the health, the use of nontoxic materials design of higher product prices, especially the Interior LED lighting, never keen on gaining petty gains use of smell LED lighting, only a handful of LED manufacturers are non-toxic material production, to identify the respective methods can be directly with the nose of, smelly products a much lower price than the odor-free. Toxins like lead, mercury, cadmium, analysis of professional requirements. From the perspective of applying environmental safety, reliable dust and moisture proof design, materials and fire-resistant and UV-proof LED low-temperature cracking of higher product prices
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