The LED market has been surging forward vigorously, and dragons and fishes jumbled together, how to choose good LED products has become a major problem for consumers, in the face of such a market, first we need to keep cool and calm, understanding LED performance characteristics, to make a better choice, this paper introduce method to select LED light source.
With the jump on the bandwagon of the market, as consumers, they still need be calm through scientific analysis, selects the best light lamps with cost performance. Several LED basic properties are as follows:
- Brightness: Different LED brightness, different prices. LED for LED lamp should be consistent with Laser Level I standard.
- Antistatic Capability:: Good antistatic ability LED will be long life buthigh prices. Antistatic usually greater than 700V LED can be used for LED lighting
- Wavelength: LED with consistent wavelength and color but at high prices. The manufacturer without LED spectrophotometric color instrument is very difficult to produce pure color products.
- Leakage Current:: LED is a one-way conductive light-emitting body, if there is some reverse current, it is called the leakage, LED with bigger leakage current has short service life and low price.
- Light-emitting Angle:: Different LED light angle is for different light usage. when Light-emitting angle is special, the price is higher. Such as the diffusion angle, the price is high.
- Life Time:: Service time is the key for different quality LED Products, life is decided by the light fades. The smaller the light decline, the longer lifebut the higher price.
- LED Chip:: The LED luminous body is the chip , different LED chip, the price difference is very big. The wafers from Japan and the United States of America are more expensive, Taiwan and domestic chip’s prices are lower than those in Japan, USA.
- LED Wafer Size/ Chip Size:: The LED chip size is expressed by LED’s side-length, larger-size wafer has much better quality than the small wafer. The price is directly proportional to the wafer size.
- Colloida:l: Generally ordinary LED colloidal is epoxy resin, if plus with UV and fire retardant is more expensive, high-quality outdoor LED lighting should be anti-UV and fire prevention. Each product has a different design, different designs for different purposes.
Reliability designs for LED lighting include: electrical safety, fire safety, environmental safety, safety of machinery, health safety, the safe use time and other factors. From the perspective of electrical safety, shall be in accordance with the relevant national and international standards.