How To Choose LED bulb

 

1, LED output flux (LM number) is different, the prices is different. LED lamps shall comply with the Laser Class Ⅰ standards.
2, Antistatic ability. LED that with strong antistatic ability has a long lifetime, thus the price is high.
3, good consistency wavelength LED is with consistent color, such as requiring the same color, the price is high. Manufacturers with no LED spectral separation device are difficult to produce pure colors.
4, the leakage current LED is one-way conductive light, if there is a reverse current, it is called leakage, large leakage current LED is with short life, low prices.
5, the different luminous angle LED has a different light angle. Special light-emitting angle, the price is higher. For diffusion angle, the price is much higher.
6, the service life of LED is different, life is the key to the quality. Life is determined by the light fades. Light decay, the life is longer, price is higher.
7, Chip LED light-emitting body is a wafer, the different wafer type; there is a great difference in price. Japan, the United States chip is more expensive, generally chip prices of Taiwan is lower than that of Japan and the U.S. (CREE).
8, the size of the wafer. Wafer size is expressed by side. Quality of great LED chips is better than small chips. Chip size is proportional to the price of the same.
9, generally, ordinary LED is colloidal epoxy resin, LED light that plus a UV resistant and fire retardant are very expensive. High-quality outdoor LED lighting should be UV and fire. Each product will have a different design for different purposes. The reliability of the design aspects of LED lighting include: electrical safety, fire safety, applicable environmental safety, mechanical safety, health and safety, safe use of time and other factors. From electrical safety point of view, it should be consistent with relevant international and national standards.
From a health aspect, LED that use non-toxic materials designed product prices is much higher, especially for indoor LED lighting, you should not choose the smell of cheap LED lighting. There are only handful LED manufacturers that use non-toxic materials production. The direct ways to identify is using nose, the price for the smelly product is lower than that without smell. Professionals need a similar analysis of lead, mercury, cadmium and other toxins. From the applicable environmental safety perspective, there is a reliable dust-proof design, material fire, anti-UV, anti-low temperature cracking price of LED products is high. anty881209wong 140516