1, brightness LED brightness is different, the price is different. The LED used for LED lamps should meet the laser class I standard.
2, anti-static ability Anti-static ability of the LED, long life, and therefore high prices. The LED with anti-static power of more than 700V is usually used for LED lighting.
3, the same wavelength and wavelength of the LED, the same color, such as the requirements of the same color, the price is high. Manufacturers without LED spectrophotometers have difficulty producing products with pure colors.
4, leakage current LED is a one-way conductive light, if there is a reverse current, it is called leakage, leakage current LED, short life, low price.
5, the use of different angle LED light emitting angle is not the same. Special light angle, higher prices. Such as full diffusion angle, the price is higher.
6, the key to life is different quality of life, life is determined by the light failure. Low light decay, long life, long life, and high price.
7, chip LED light body for the chip, different chips, the price difference is very large. Japan and the United States have more expensive chips, and generally Taiwan and domestic chips have lower prices than Japan and the United States.
8, chip size The size of the chip is represented by the side length, the quality of the large chip LED is better than the small chip. The price is directly proportional to the size of the chip.
9, colloidal general LED colloidal epoxy resin is generally, plus anti-ultraviolet and fire retardant LED prices more expensive, high-quality outdoor LED lighting should be anti-ultraviolet and fire. Each product will have a different design, 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 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 testing. 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 terms of safety design. Consumers are required to carefully identify the authenticity of the certificate. There are not many manufacturers that have international safety certification and national product certification.
From the health aspect, the use of non-toxic material design of the product price is high, especially the indoor LED lighting, do not greedy and cheap use of odor LED lighting, only a few LED manufacturers are using non-toxic materials production, identification method It is possible to use the nose directly and the smelly product is much lower than the odorless one. Similar to lead, mercury, cadmium and other toxins 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 materials for fire protection, UV protection, and low-temperature cracking is high!
LED explosion-proof lights LED explosion-proof lights LED explosion-proof floodlights LED explosion-proof floodlights price concessions. Detailed consultation!
The hole saw, also known as the hole saw or hole saw, refers to a special circular saw in the processing of circular holes in modern industry or engineering. It is simple and flexible to operate, convenient to carry, safe and widely used. The hole opener (cutter) is installed on the ordinary electric drill, and it is convenient to cut round holes, square holes, triangular holes, straight lines and curves on the plane and sphere of various plates such as copper, iron, stainless steel and plexiglass.
Hole Saw,Hole Saw Kit,Hole Saw Cutter,Tile Hole Saw
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