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How do we buy LED bulbs in our lives?

Source:Hangzhou Hesunny    Hits:     Date:2019.05.10

  1, LED output luminous flux (LM number) is different, the price is different. LEDs used in LED luminaires shall comply with the laser class I standard.

  2, anti-static ability LED anti-static ability, long life, and therefore high price. LEDs with a typical antistatic of more than 700V can be used for LED lighting.

  3. LEDs with good wavelength consistency have the same color. If the color is consistent, the price is high. It is difficult for manufacturers without LED spectrophotometers to produce pure color products.

  4, leakage current

  The LED is a unidirectional conductive illuminator. If there is a reverse current, it is called leakage, and the LED with large leakage current has a short life and a low price.

  5. LEDs with different illumination angles have different illumination angles. Special lighting angle, the price is higher. Such as full diffusing angle, the price is higher.

  6, the life is different, the key to quality is life. Life expectancy is determined by light decay. Low light decay, long life and high price.

  7, the chip

  The illuminants of LEDs are wafers, and the prices of different wafers vary widely. The chips in Japan and the United States are relatively expensive, and the prices of wafers in Taiwan and China are generally lower than those in Japan and the United States (CREE).

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

  9, colloidal ordinary LED colloid is generally epoxy resin, LED with anti-ultraviolet and fire retardant is more expensive, high-quality outdoor LED lighting should be resistant to UV and fire. Each product will have different designs. Different designs are suitable for different purposes. The reliability design of LED lighting includes: electrical safety, fire safety, environmental safety, mechanical safety, health and safety, and safe use time. 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, but the country provides product qualification tests. LED lighting with international safety certification (such as GS, CE, UL, etc.) and national product quality certificate is expensive, because these products are reliable in safety design. Consumers are paying attention to the authenticity of the certificate. There are not many manufacturers with international safety certification and national product certification.

  From the aspect of health, the price of products designed with non-toxic materials is high, especially for indoor LED lighting. Don't use cheap LED lighting with odor. Only a few LED manufacturers use non-toxic materials to produce. Directly with the nose, the smelly product is much cheaper than the odorless one. Toxins like lead, mercury, and cadmium require professional analysis. From the perspective of applicable environmental safety, there is a reliable dust-proof and moisture-proof design, and the price of LED products with fireproofing, ultraviolet protection and low-temperature cracking is high.

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