Things to pay attention to when buying LED lamps
1. The LED brightness (MCD) is different, and the price is different. The LED used in the LED lamp should be suitable for the laser class ¢ñ standard.
2. The LED with strong antistatic ability has a long life, so the price is high. Generally, LEDs with anti-static voltage greater than 700V can be used for LED lighting.
3. LEDs with the same wavelength have the same color. If the color is the same, the price is high. It is difficult for manufacturers without LED spectrophotometers to produce products with pure colors.
4. Leakage current LED is a unidirectional conductive light-emitting body. If there is a reverse current, it is called leakage. LEDs with large leakage current have short life and low price.
5. LEDs with different light-emitting angles have different light-emitting angles. Special luminous angle, higher price.
6. The life span is different. The key to quality is life span. Life span is determined by light decay. Low light decay, long life and high price.
7. Chip LED's light-emitting body is a chip, and the price of different chips varies greatly. Chips in Japan and the United States are more expensive. Generally, the prices of chips made in Taiwan and China are lower than those in Japan and the United States (CREE).
8. Chip size The size of the chip is expressed by the side length. The quality of the large chip LED is better than that of the small chip. The price is proportional to the chip size.
9. Colloid The colloid of ordinary LEDs is generally epoxy resin. LEDs with anti-ultraviolet and fire retardants are more expensive. High-quality outdoor LED lighting should be anti-ultraviolet and fireproof. Each product has a different design, and different designs are suitable for different purposes. The reliability design of LED lighting includes factors such as electrical safety, fire safety, applicable environmental safety, mechanical safety, health safety, and safe application time. From the perspective of electrical safety, it should be suitable for relevant international and national standards.www.szbjhkj.com
