1: The brightness and price of LED are different. The LED used for LED lamps should be suitable for class I standard of laser grade.
2: LED with strong antistatic ability, long life and high price. Usually, LED with antistatic capacity greater than 700V can be used in LED lighting.
3: Wavelength affects the color of LED. If the color is the same, the price will be higher. It is difficult for manufacturers without LED spectrophotometer to produce pure color products.
4: Leakage current, LED is a single-guide light-emitting body, if there is a reverse current, it is called leakage, leakage current large LED, short life, low price.
5: Light-emitting angle, different uses of LED light-emitting angle is different, the price of specific light-emitting angle is higher.
6: Life, the key to different qualities is life, life is determined by light decay. Low light fade, long life and high price.
7: Wafers, LED light-emitting body for wafers, different wafers, prices vary greatly. Chips in Japan and the United States are more expensive. Generally, the price of chips in Taiwan is lower than that in Japan and the United States, and that in China is the lowest.
8: Colloid, the colloid of ordinary LED is epoxy resin. The price of LED with anti-ultraviolet and fire retardant is more expensive. High-quality outdoor LED lighting should be anti-ultraviolet and fire.