Nowadays, there are signboards with luminous characters on the streets and so on. Basically, LED light-emitting words mostly use LED light source, especially in developed cities. It is believed that the application will be more extensive and frequent in the future. The following by the small editor to introduce the future development direction of LED light-emitting words.
What are the future development directions of LED luminous words?
1. High efficiency of luminous words
After decades of technical improvement, the luminous efficiency of LED words has been greatly improved. The lighting efficiency of incandescent lamp and halogen tungsten lamp is 12-24 lumen / watt, fluorescent lamp is 50-70 lumen / watt, and sodium lamp is 90-140 lumen / watt. Most of the power consumption becomes heat loss. After the improvement, the luminous efficiency of LED will reach 50-200 lumens / watt. Moreover, it has good monochromatic property and narrow spectrum. It can directly emit colored visible light without filtering. At present, all countries in the world are stepping up the research on improving the luminous efficiency of LED, and its luminous efficiency will be greatly improved in the near future.
2. Strong safety and reliability
Low calorific value, no thermal radiation, cold light source, safe touch: can accurately control the light type and luminous angle, soft light color, no glare; no mercury, sodium and other substances that may harm health. The built-in micro processing system can control the luminous intensity, adjust the luminous mode, and realize the combination of light and art.
3. Long service life
It is easy to burn, heat deposit, light attenuation and so on. The LED lamp is small in size, light in weight and packaged in epoxy resin, which can withstand high-strength mechanical impact and vibration, and is not easy to be broken. The average life span is 100000 hours. The service life of LED lamps and lanterns can be up to 5-10 years, which can greatly reduce the maintenance cost of lamps and avoid the pain of changing lamps frequently.
4. Low power consumption
LED single tube power 0.03 ~ 0.06 W, DC drive, single tube driving voltage 1.5 ~ 3.5 V, current 15 ~ 18 Ma, fast reaction speed, can operate in high frequency. Under the same lighting effect, the power consumption is one eighth of that of incandescent bulbs and one-half of that of fluorescent tubes. According to Japan's estimation, if the LED with light efficiency twice higher than that of fluorescent lamps is used to replace half of the incandescent lamps and fluorescent lamps in Japan. 6 billion liters of crude oil can be saved every year. For example, the same effect of a fluorescent lamp more than 40 watts, and the use of LED each power only 8 watts, and can be colorful changes.
5. Good for environmental protection
LED is a solid-state led, shock resistant, impact resistant, not easy to break, waste can be recycled, no pollution. The light source is small in size and can be combined at will. It is easy to develop into light, thin, short and small lighting products, as well as easy to install and maintain. LED is now known as the fourth generation light source. Compared with traditional light source, high-power LED has many advantages in outdoor lighting.