A. Optical Efficiency: spectrum almost all concentrated in the visible light frequency, efficiency can reach 80% -90%. And the luminous efficiency of incandescent is only with almost 10%-20% visible light efficiency.
B. High-quality Light: as a result that there is no ultraviolet and infrared of spectrum, there is no heat, no radiation, and is typically green lighting.
C. Small Energy Consumption: single-power general in the 0.05-1w, through the cluster can be tailored to meet different needs, and waste little. As the light source, in the same brightness, it's power consumption can be only 1/8-10 of ordinary incandescent.
D. Long life: flux attenuation to 70% of the standard life expectancy is 100,000 hours. A semiconductor lamp can be used under normal circumstances 50 years, even if the long life of the people, lives up to it with two lights.
E. Durable and Reliable: No tungsten wire, glass and other easily damaged components, few non-normal retirement rate, and with very low maintenance costs.
F. Flexibility of Application: small size, can flat pack, easy to develop into a short thin products, and can make various forms such as point, line, face of specific applications.
G. Security: working voltage is 1.5-5v or less in between ,and the current is 20-70mA in between.
H. Green: The waste can be recycled and of no pollution. Unlike fluorescent lamps that contains mercury as ingredients.
I. Short Response Time: can adapt to frequent switching and high-frequency operating occasions.
LED lamps are given light by the light emitting diodes. Light-emitting diode is a semiconductor PN junction. Conductivity of the semiconductor is a one-way conductor. Just like copper, aluminum and other conductors, the current change flowing through the semiconductor (as long as under the rated current and rated voltage range), will not affect the life of the semiconductor. Therefore, in addition to the advantage of small size, low driving voltage, full-color, long life, high efficiency, resistance to vibration and other characteristics, the LEDs have one very important feature of easy to control. Even if the current flowing through the LED changes in high frequency, the LEDs also remain intact.
A typical example is the red, green and yellow LED traffic lights in the crossings. These traffic lights, when red light on, then green light off; when yellow light, then the red and the green lights are off. if the changes happen in every 30 seconds ,then a day should switch 2880 times. And in one year, they have to switch a million times!