Different LED brightness, different price. Led with strong anti-static ability has long service life and high price. Generally, led with anti-static voltage greater than 700V can be used for LED lighting. Led with the same wavelength has the same color. If the color is required to be the same, the price is high. It is difficult for manufacturers to produce pure color products without led spectrophotometer. LED is a one-way conductive light-emitting body. If there is reverse current, it is called leakage current. Led with large leakage current has short life and low price.
The luminous angles of LEDs with different uses are different. Special lighting angle, high price. Such as the total diffuse angle, the price is higher. The key to different qualities is life, which is determined by light decay. Small light decay, long life, long life, high price. LED light-emitting body is chip, different chip, the price is very different. The size of the chip is indicated by the side length, and the quality of large chip LED is better than that of small chip. The price is proportional to the chip size.
Ordinary led colloid is generally epoxy resin, and the price of LED with anti ultraviolet and fire retardant is expensive. High quality outdoor LED lighting should be anti ultraviolet and fire retardant.