How to choose LED lamp

With the herd of the market, as consumers , the choice led lamp beads still be calm, scientific analysis , the choice of the best cost-effective light sources and lamps, LED lamp beads Here are a few basic properties:
1 , brightness LED lamp brightness , different prices . LED for LED lamps shall comply with Laser Class Class Ⅰ standards.
2 , antistatic ability antistatic ability of the LED, long life, and therefore higher prices . Usually static than 700V of the LED can be used for LED lighting .
3 , the same wavelength wavelength of the LED, the same color, such as requiring the same color, then the price is high. No LED spectral separation device manufacturers is difficult to produce pure colors .
4, the leakage current is unidirectional LED lamp beads conductive light , if there is reverse current is called leakage, leakage current is large LED lamp beads , short life , low prices.
5, the use of different LED light-emitting angle of its light angle is not the same . Special light-emitting angle , and higher prices . If all diffusion angle , higher prices.
6 , the life of different quality is the key to life, life determined by the light fades . Light decay, long life , long life , high price.
7 , light LED chip the wafer , different chips , prices vary widely . Japan, the United States more expensive chips , generally made in Taiwan and chip prices lower than Japan and the U.S. .
8, the chip size chip size to the side that big chip LED lamp bead quality is better than the small chip . Chip size is proportional to the price of the same .
9 , colloidal ordinary LED colloidal generally epoxy resin, plus a UV LED and fire agents more expensive , high-quality outdoor LED lighting should be UV and fire . Each product will have a different design , different designs for different purposes , LED lighting design reliability include: electrical safety, fire safety , for environmental safety , mechanical safety , health and safety, safe use of time and other factors . From an electrical safety point of view, should be consistent with relevant international and national standards.