1. The LED output luminous flux (LM number) is different, and the price is different. The LED used for LED lamps should meet the laser class I standard.
2. The LED with strong antistatic ability has long life and high price. Usually, only the LED whose single antistatic is greater than 700V can be used for LED lighting.
3. LEDs with good wavelength consistency have the same color. If the color is required to be consistent, 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 luminous 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 lighting angle, higher price. Such as full diffusion angle, the price is higher.
6. The life span is different, and the key to quality is life span. Life is determined by light decay. Low light decay, long life and high price.
7. Chip
The luminous body of the LED 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 size of the chip.
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 will have a different design. 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.
As LED is a new product, China's national standards are lagging behind, but the country provides product qualification tests. The price of LED lighting with international safety certification (such as GS, CE, UL, etc.) and national product quality certification is higher because these products are reliable in safety design. Consumers should pay attention to the authenticity of the certificate. There are not many manufacturers with international safety certification and national product certification.
In terms of health, the price of products designed with non-toxic materials is higher, especially indoor LED lighting. Don’t be greedy for cheap LED lighting with peculiar smell. Only a few LED manufacturers use non-toxic materials to produce. The method of identification can be Directly use the nose to separate, smelly products are much cheaper than odorless products. Toxins such as lead, mercury, and cadmium need to be analyzed by professionals. From the perspective of applicable environmental safety, there are reliable dust-proof and moisture-proof design, and the price of LED products with fire-proof, UV-proof, and low-temperature cracking prevention is high.