Choose LED light source according to the basic performance of LED

With the increasing awareness of environmental protection and energy saving around the world, the LED lighting industry has developed rapidly since 2008. Different grades of LED light sources are also circulating on the market. This is also a big challenge for LED lighting manufacturers to choose light sources. In any case, everyone must be calm and scientifically analyze when choosing LEDs, and choose the light source and lamps with the best cost-effectiveness. The following introduces several basic performances of LEDs:

1. Different LED brightness (MCD) has different prices. LEDs used in LED lamps should meet the laser class I standard.

2. Antistatic ability LEDs with strong antistatic ability have long life and are therefore expensive. Usually, only LEDs with antistatic ability greater than 700V can be used in LED lighting.

3. LEDs with consistent wavelengths have consistent colors. If you require consistent colors, the price will be high. It is difficult for manufacturers without LED spectrophotometers to produce products with pure colors.

4. Leakage current

LED is a unidirectional conductive light source. If there is a reverse current, it is called leakage. LEDs with large leakage current have short life and low price.

5. The luminous angle of LEDs with different uses is different. The price is higher for special luminous angles, such as full diffuse angle, which is more expensive.

6. Lifespan The key to different quality is lifespan, which is determined by light decay. Small light decay means long lifespan, while long lifespan means high price.

7. Chip

The light source of LED is chip. Different chips have different prices. Chips from Japan and the United States are more expensive. Generally, the price of chips from Taiwan and China is lower than that from Japan and the United States (CREE).

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 proportional to the chip size.

9. Colloid The colloid of ordinary LED 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 will have different designs, and 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 should comply with relevant international and national standards.

Since LED is a new product, China's national standards lag behind, but the country provides product qualification tests. LED lighting with international safety certification (such as GS, CE, UL, etc.) and national product quality certificates are more expensive because these products are reliable in safety design. Consumers should pay attention to carefully identifying the authenticity of the certificate. Currently, there are not many manufacturers with international safety certification and national product certificates.

From the health aspect, products designed with non-toxic materials are more expensive, especially indoor LED lighting. Don't be greedy and choose LED lighting with odor. Currently, only a few LED manufacturers use non-toxic materials. You can distinguish them directly with your nose. Products with odor are much cheaper than those without odor. Toxins such as lead, mercury, and cadmium need to be analyzed by professionals. From the perspective of environmental safety, LED products with reliable dust and moisture-proof design, fireproof, UV-proof, and low-temperature cracking-proof materials are more expensive.