The selection of LEDs should be analyzed calmly and scientifically, and the best cost-effective light sources and lamps should be selected. The following describes the basic performance of several LEDs:

1. Brightness LED brightness is different, the price is different. The LED used for LED lamps shall meet the class I standard of laser grade.

2. The LED with strong antistatic ability has long service life and high price. Generally, led with antistatic voltage greater than 700V can be used for LED lighting.

3. The 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 without led spectrophotometer to produce products with pure color.

4. Leakage current LED is a one-way conductive luminous body. If there is a reverse current, it is called leakage. Led with large leakage current has short service life and low price.

5. The luminous angle of LEDs with different uses is different. Special luminous angle, high price. Such as full diffusion angle, the price is higher.

6. The key to different quality of life is life, which is determined by light decay. Small light attenuation, long service life, long service life and high price.

7. The light-emitting body of chip LED is chip. The price varies greatly with different chips. Chips from Japan and the United States are more expensive. Generally, the prices of chips from Taiwan and China are lower than those from Japan and the United States.

8. Chip size the size of the chip is expressed by the side length. The quality of large chip LED is better than that of small chip. The price is directly proportional to the wafer size.

9. Colloid the colloid of ordinary LED is generally epoxy resin. The LED with anti ultraviolet and fireproof agent is more expensive. High quality outdoor LED lighting should be anti ultraviolet and fireproof. Each product will have different designs. Different designs are suitable for different purposes. The reliability design of LED lighting includes: electrical safety, fire safety, applicable environmental safety, mechanical safety, health safety, safe use time and other factors. From the perspective of electrical safety, it shall comply with relevant international and national standards.