How to buy LED light bulb

- Dec 07, 2018 -

1, LED output luminous flux (LM number) is different, the price is different. LEDs for LED Luminaires should meet the Ⅰ class standard for laser grade.

2, anti-static ability anti-static ability of the LED, long life, so the price is high. Usually the monomer antistatic greater than 700V LED can be used for LED lighting.

3, wavelength consistency of good LEDs, color consistent, such as the requirements of the same color, the price is high. Manufacturers without led spectroscopic separators find it difficult to produce products of pure color.

4. Leakage current

LED is a one-way conductive luminescent body, if there is a reverse current, it is called leakage, leakage current is large LED, short life, low price.

5, luminescent angle use of different LEDs its luminous angle is not the same. Special luminous angle, higher price. such as full diffuse angle, the price is higher.

6, life is different, the key to quality is life. Life span is determined by light decay. Light decay is small, long life, high price.

7. Wafer LED luminescent body for the wafer, different wafers, the price varies greatly.

Wafers in Japan and the United States are more expensive, generally Taiwan and domestic wafer prices are lower than Japan, the United States (CREE).

8, wafer size wafer size in edge length, the quality of large wafer LEDs is better than that of small wafers. The price is proportional to the size of the wafer.

9, colloidal ordinary led colloid is generally epoxy resin, plus anti-ultraviolet and fireproof agent led price is more expensive, high-quality outdoor LED lighting should be anti-ultraviolet and fire protection. Each product will have a different design, different designs for different purposes, LED lighting reliability design includes: Electrical Safety, fire safety, applicable environmental safety, mechanical safety, health and safety, safe use of time and other factors. From the point of view of electrical safety, should conform to the relevant international and national standards.


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