50 years ago, people came to understand the semiconductor material can produce light of the basic knowledge, the first commercial diode produced in 1960. LED is the light emitting diode in English abbreviation.
Its basic structure is an electroluminescent semiconductor materials, placed on a wire rack, then sealed with epoxy resin around, protect the internal core lines effect, so the LED’s seismic performance.
Compared to incandescent bulbs and neon, LED is characterized by: low operating voltage (some only a few volts point); operating current is very small (some only a few tenths of mA can be light); shock and vibration good performance, high reliability, long life; by modulating the current through the strength can be easily modulated luminescence intensity.
LED use low voltage power supply, power supply voltage between the DC 3-24V, varies depending on the product, there are a few DC36V, DC40V, etc., so it is a more secure than using a high voltage power supply, especially for public places.
CREE LED lamp is used with AOD super bright white LED as light source, the shell is acrylic / aluminum alloy (customer-defined). Housing available PC pipe production, high temperature of 135 degrees. LED lamp with the traditional fluorescent lamp in the dimensions are the same caliber, length 60cm and 120cm, 150cm, the power was 10W, 16W and 20W, and 20W traditional fluorescent lamp (ballast) the actual power consumption of about 53W , 40W traditional fluorescent lamp (ballast) the actual power consumption of about 68W.
LED fluorescent lamp is up to 80% energy saving compared to incandescent lamps over lamp life, and more than 10 times in the lifespan, almost maintenance free, there should always replace the lamp, ballast, starter problems, about a year down The cost savings can exchange costs. Environment-friendly semiconductor light source, light and soft, pure spectrum in favor of workers eyesight and physical health, 6000K cool white light gives a cool visual experience and helps to focus and improve efficiency.
LED prices more and more civilians, because LED power-saving features, perhaps in the near future, people will put incandescent LED lights. In some urban roads, schools, factories and other places have been completed facelift LED lights, energy saving lamps.