Several points of purchasing LED light

Be careful of cheap trap. There is a large price difference between different LED light sources. LED with the same brightness and colors, the price can differ several times. This gap is mainly reflected in the reliability and lumen of LED, appearance and other properties of the above process. Low price LED chip size is small, the electrode is rough, material used (phosphor and glue) is poor. Resistance to electric current, temperature and humidity changes is poor, the light fades is fast, life is short, so the blind pursuit of low-cost may outweigh the benefits.

A clear understanding of the relevant standards, from a security point of view, the product should comply with the relevant international and national standards. Because LED is a new tech product, China lags behind national standards, only provide product qualification testing. So international safety certification (such as GS, CE, UL, etc.) is the measure of the quality of LED lights standard, while there are not many manufacturers have both country and international safety certification and product quality certification. When purchasing, you need to carefully identify the authenticity of the certificate. LED with International safety certification of products, prices are generally higher.

Select the constant current power supply LED lights. The price of LED drive power resistors, capacitors, IC and other components differ very big. The entire power supply used in the design of programs and the reasonableness of the line itself will directly affect the quality of the product. Some drive power is just constant voltage, failed to get constant current, and LED lamps must be constant in order to make ensure the quality and service life. So, when you purchase, this requires extra attention, especially for high-power LED lights.  anty881209wong 140404