Lights are everywhere in our lives, especially when it comes to home decoration. What kind of lights should I buy in my bedroom, living room and dining room? This problem has stumped many people, but in fact, there are a lot of attention to the purchase of lights. Today, the author will sort out the purchase knowledge of the lights, and interested friends can not miss it.
Many people may know that there are several kinds of lights, and they also know that the energy-saving effects are LED energy-saving lamps, energy-saving lamps, and incandescent lamps. But the original ideals in the family must not be understood by everyone.
Ordinary incandescent lighting effects are about 10 lumens per watt, and the life expectancy is about 1000 hours. Its working principle is: when the light is connected into the circuit, the current flows through the filament, and the thermal effect of the current causes the incandescent lamp to emit continuous visible light and Infrared, this phenomenon can be noticed when the filament temperature rises to 700K. Because the filament temperature during operation is very high, most of the energy is wasted in the form of infrared radiation. Because the filament temperature is high, the evaporation is also fast, so the life is also Large shortening, about 1000 hours; in terms of energy saving, traditional incandescent lamps due to a large amount of infrared energy loss and high temperature heating, short life, the introduction of advanced energy-saving green lights is an inevitable power-saving revolution .
Q & A: Why is the LED energy-saving lamp more energy-efficient than the incandescent lamp? Compared with the incandescent lamp, the energy-saving and environmentally-friendly lamp mainly heats the lamp filament through the ballast. At about 1160K, the filament starts to emit electrons (because it is coated on the filament) Some electron powders), electrons collide with argon atoms to produce inelastic collisions. After collision with argon atoms, energy is obtained and it collides with mercury atoms. Mercury atoms are ionized after energy absorption to generate ionization, emitting 253.7nm ultraviolet rays, and ultraviolet rays excite phosphors to emit light, due to fluorescent lamps. The temperature of the filament at work is about 1160K, which is much lower than the temperature of the incandescent lamp working 2200K-2700K, so its life is also greatly improved, and the energy saving and consumption reduction degree can reach more than 5000 hours, because it does not have an incandescent lamp. The current thermal effect, the energy conversion efficiency of the phosphor is also very high, reaching more than 50 lumens per watt.
LED (Light-Emitting-Diode) is a semiconductor that converts electrical energy into visible light. It changes the principle of incandescent tungsten filament illumination and energy-saving lamp trichromatic toner illumination, and uses electric field illumination. Because LED uses solid semiconductor chips as luminescent materials, and the light bulbs we use in our daily life use metal to make luminescent materials, the energy emitted is different. According to relevant statistics, a red LED illuminates to a certain brightness. The energy consumed is 15 watts, while the traditional bulb consumes up to 150 watts of energy to achieve the same measurement. According to scientists, when the LED is powered, 10% of the energy can be converted into light energy. The conversion efficiency of incandescent bulbs is only 7-8%. It can be seen that to achieve the same lighting effect, it is obvious that LED lamps are more energy efficient than incandescent lamps.
According to analysis, the characteristics of LED are very obvious, long life, high luminous efficiency, no radiation and low power consumption. The spectrum of the LED is almost entirely concentrated in the visible light range, and its luminous efficiency can exceed 150 lm/W (2010). Comparing LED with ordinary incandescent lamp, spiral energy-saving lamp and T5 trichromatic fluorescent lamp, the results show that the luminous efficiency of ordinary incandescent lamp is 12lm/W, the life is less than 2000 hours, the luminous efficiency of spiral energy-saving lamp is 60lm/W, and the service life is less than 8000 hours, T5 fluorescent lamp is 96lm / W, life expectancy is about 10000 hours, and white light LED with a diameter of 5 mm can exceed 150lm / W, life can be more than 100000 hours. Some people also predict that the future LED life limit will be infinite, and will certainly dominate the market.
Many people may know that there are several kinds of lights, and they also know that the energy-saving effects are LED energy-saving lamps, energy-saving lamps, and incandescent lamps. But the original ideals in the family must not be understood by everyone.
Ordinary incandescent lighting effects are about 10 lumens per watt, and the life expectancy is about 1000 hours. Its working principle is: when the light is connected into the circuit, the current flows through the filament, and the thermal effect of the current causes the incandescent lamp to emit continuous visible light and Infrared, this phenomenon can be noticed when the filament temperature rises to 700K. Because the filament temperature during operation is very high, most of the energy is wasted in the form of infrared radiation. Because the filament temperature is high, the evaporation is also fast, so the life is also Large shortening, about 1000 hours; in terms of energy saving, traditional incandescent lamps due to a large amount of infrared energy loss and high temperature heating, short life, the introduction of advanced energy-saving green lights is an inevitable power-saving revolution .
Q & A: Why is the LED energy-saving lamp more energy-efficient than the incandescent lamp? Compared with the incandescent lamp, the energy-saving and environmentally-friendly lamp mainly heats the lamp filament through the ballast. At about 1160K, the filament starts to emit electrons (because it is coated on the filament) Some electron powders), electrons collide with argon atoms to produce inelastic collisions. After collision with argon atoms, energy is obtained and it collides with mercury atoms. Mercury atoms are ionized after energy absorption to generate ionization, emitting 253.7nm ultraviolet rays, and ultraviolet rays excite phosphors to emit light, due to fluorescent lamps. The temperature of the filament at work is about 1160K, which is much lower than the temperature of the incandescent lamp working 2200K-2700K, so its life is also greatly improved, and the energy saving and consumption reduction degree can reach more than 5000 hours, because it does not have an incandescent lamp. The current thermal effect, the energy conversion efficiency of the phosphor is also very high, reaching more than 50 lumens per watt.
LED (Light-Emitting-Diode) is a semiconductor that converts electrical energy into visible light. It changes the principle of incandescent tungsten filament illumination and energy-saving lamp trichromatic toner illumination, and uses electric field illumination. Because LED uses solid semiconductor chips as luminescent materials, and the light bulbs we use in our daily life use metal to make luminescent materials, the energy emitted is different. According to relevant statistics, a red LED illuminates to a certain brightness. The energy consumed is 15 watts, while the traditional bulb consumes up to 150 watts of energy to achieve the same measurement. According to scientists, when the LED is powered, 10% of the energy can be converted into light energy. The conversion efficiency of incandescent bulbs is only 7-8%. It can be seen that to achieve the same lighting effect, it is obvious that LED lamps are more energy efficient than incandescent lamps.
According to analysis, the characteristics of LED are very obvious, long life, high luminous efficiency, no radiation and low power consumption. The spectrum of the LED is almost entirely concentrated in the visible light range, and its luminous efficiency can exceed 150 lm/W (2010). Comparing LED with ordinary incandescent lamp, spiral energy-saving lamp and T5 trichromatic fluorescent lamp, the results show that the luminous efficiency of ordinary incandescent lamp is 12lm/W, the life is less than 2000 hours, the luminous efficiency of spiral energy-saving lamp is 60lm/W, and the service life is less than 8000 hours, T5 fluorescent lamp is 96lm / W, life expectancy is about 10000 hours, and white light LED with a diameter of 5 mm can exceed 150lm / W, life can be more than 100000 hours. Some people also predict that the future LED life limit will be infinite, and will certainly dominate the market.
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