High luminous efficiency
After decades of technological improvements, the luminous efficiency of LED has been greatly improved. Incandescent lamps and halogen lamps have a luminous efficiency of 12-24 lumens per watt, fluorescent lamps have a luminous efficiency of 50-70 lumens per watt, and sodium lamps have a luminous efficiency of 90-140 lumens per watt. Most of the power consumption is lost as heat. After improvement, the luminous efficiency of LED will reach 50-200 lumens per watt, and its light has good monochromaticity and a narrow spectrum, and can directly emit colored visible light without filtering. At present, countries around the world are stepping up research on improving LED luminous efficiency, and its luminous efficiency will be further improved in the near future.
Low power consumption
The power of a single LED tube is 0.03 to 0.06 watts. It uses a DC drive with a single tube drive voltage of 1.5 to 3.5 volts and a current of 15 to 18 milliamperes. It has a fast response speed and can operate at high frequencies. Under the same lighting effect, the power consumption is one-eighth of that of an incandescent bulb and one-half of that of a fluorescent tube. Japan estimates that if LEDs, which are twice as efficient as fluorescent lamps, are used to replace half of Japan's incandescent and fluorescent lamps, it can save the equivalent of 6 billion liters of crude oil each year. For example, for bridge guardrail lights, a fluorescent lamp with the same effect consumes more than 40 watts, while each LED consumes only 8 watts, and can change colors.
Long service life
The use of electronic light field radiation to emit light has the disadvantages of easy burning of filament light, heat deposition, light attenuation, etc. However, LED lamps are small in size, light in weight, and epoxy resin encapsulated, which can withstand high-intensity mechanical shock and vibration and are not easy to break. The average life span is 100,000 hours. The service life of LED lamps can reach 5 to 10 years, which can greatly reduce the maintenance cost of lamps and avoid the pain of frequent lamp replacement.
Strong safety and reliability
Low heat generation, no heat radiation, cold light source, safe to touch: can accurately control the light type and luminous angle, soft light color, no glare; does not contain mercury, sodium and other substances that may be harmful to health.
Good for the environment
LED is a solid-state light source, shock-resistant, impact-resistant, not easy to break, recyclable, and pollution-free. The light source is small in size and can be combined at will. It is easy to develop into a light, thin, short and small lighting product, and is also easy to install and maintain. Of course, energy saving is the main reason why we consider using LED light sources. LED light sources may be more expensive than traditional light sources, but the investment in the light source can be recovered by energy saving in one year, thereby obtaining a net energy saving income of several times each year in 4 to 9 years.
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