Point light source selection skills

1, brightness LED brightness is different, the price is different. Used for LED lamps and lanterns LED should comply with the laser level Ⅰ class standard.

2, antistatic ability antistatic ability LED, long life, so prices high. Usually antistatic more than 700 v LED to used in LED lighting.

3, wavelength wavelength consistent LED, same color requirements, such as the same color, the price high. No LED spectral color separation instrument manufacturer it is difficult to produce color pure product.

4, leakage current LED is unidirectional electric light, if there is a reverse current, it is called leakage, leakage current big LED, short life and low price.

5, light Angle USES different LED the luminous Angle is not the same. Special light Angle, the price is higher. Such as full diffuse Angle, the price is higher.

6, different life quality is the key to life, life is made of light to failure. Light failure small, long service life, long life, high price.

7, wafer LED light for wafer, different wafer, price difference is very big. Japan, the United States of wafer is more expensive, general Taiwan and domestic chip prices lower than day, the United States.

8, chip size wafer to the size of the length of side said, big chip LED quality than small wafer is better. The price is proportional with the chip size.

9, colloid ordinary LED of the colloid is commonly epoxy resin and with a uv radiation and fire retardant LED price is more expensive, high quality outdoor LED lighting should be anti-ultraviolet and fire.

Each kind of product will have a different design, different design suitable for different USES, LED lighting reliability design include: electrical safety, fire safety, suitable environmental safety, mechanical safety, health and safety, safety use factors such as time. From electrical safety point of view, should be in compliance with relevant international and national standards.

Due to the LED is a new product, the Chinese national standard lag, but countries to provide qualified products testing. With international safety certification (such as GS, CE, UL, etc.) and national product quality certificate LED lighting prices are high, because these products in safety design is reliable. Consumers pay attention to is to want to be identification certificate of authenticity, now have international security authentication and the national product certificate of manufacturer is not much.

From the health, the non-toxic materials design products prices are high, especially indoor LED lighting, don't anxious to get things on the cheap choose have peculiar smell LED lighting, is currently only a few LED manufacturer is non-toxic materials production, discrimination method can directly use the nose to smell, respectively, the product is better than no odor price lower a lot. Similar lead, mercury, cadmium and toxin need professional analysis. From the applicable environmental safety look, a reliable dustproof moistureproof design, materials, fire prevention, prevent ultraviolet ray, prevent cold cracking LED product prices high.

The main technical parameters of LED luminous intensity, chromaticity, wavelength and color temperature, etc. Below we will these parameters to give brief introduction.