LED power decided to LED lighting quality

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Recent years, LED lamps, the reason touted the market rate of 130% per year increase, the most important reason is due to environmental protection (not as energy-saving lamps contribution to toxic substances), long lif e (LED theory of life is 100,000 hours or so), the photoelectric efficiency (energy), a number of advantages in the market make extensive use of the process, some manufacturers LED lighting designers of LED driver power supply technology is not mature or unscrupulous profiteers in order to seek maximum benefits, the use of unqualified source material. cut corners, defective power supply LED lighting products to make life greatly reducing the practice of life of the big local product in the market is also a lack of 1000 hours, the light fades a few days beyond 50% will say why the LED power LED lamps resolution quality is an important elements?

    LED drive power LED lamps, it is like a person s heart, to create high-quality led underground light lamps for lighting necessary to give up the constant voltage drive LED.

Today, many high-power LED packaging factory will be many pi eces of a single LED parallel and series, they are sealed in with the consumption of a single 20W, 30W or 50W or 100W as well as higher-power LEDs in the pre-packaged, single LED are severely selection and matching, but due to internal number ranging from dozens of stars, more than a few hundred monomers LEDs, thus high-power LED package waste there is still a great difference in the voltage and current, and phase ordinary individual than a single LED (white, green, blue working voltage 2.7-4V, a single red, yellow, orange, light Operating voltage 1.7-2.5V) greater parameter difference! (Prompt just launched the LED lamp factory package quality of the LED light source can not ignore)

    Incurred by the different manufacturers of consumer as well as a consumer manufacturers in the same batch of product consumption, the LED current-voltage characteristics are large individual differences due to the special nature of LED manufacturing. Now the typical high-power 1W white LED specification, for example, in accordance with the LED current, the voltage variation to do to briefly clarify the ordinary 1W white light application of forward voltage 3.0-3.6V or so, that is, when the nominal 1W LED flow current of 350 mA, the voltage across it 3.1V, may also be in the 3.2V or 3.5V, it may be some other value, ordinary LED consumer manufacturers Initiative lamp factory with 350mA current to guarantee the life of the 1WLED drive (some manufacturers due to the reason of the packaging process and cooling, to ensure that life aspects of thinking, will the initiative reduced to 320 mA or 300 mA) across the commercial led lighting forward current reaches 350 mA, the LED end of the forward voltage of a small increase will cause the LED forward current substantial rise in the LED temperature to straight up, thus speeding up the LED light failure, and shortened life expe ctancy of the LED, serious and even burn out the LED. Due to the voltage of the LED, the particularity of the current changes, and thus the power to drive the LED stern request. Some manufacturers, in order to reduce the capital of the products, the consumption of low-level high-power LED lamps in the constant voltage drive LED (some factory work), is one or several high-power resistor in series with constant voltage power supply, also brought a batch consumption of each LED light brightness difference between the LED does not work in the best condition, short life, fever ferocious a series of questions.