Which lamp is more cost-effective for incandescent, energy-saving, and LED lights?
On May 7, a report on the gradual price reduction of LED lights is quietly occupying the market for energy-saving lamps. "There are incandescent lamps, energy-saving lamps and LED lamps on the market. I don't know how the lighting effects of these lamps are. It is more cost-effective to choose." Mr. Zhao, after reading the report, called the newspaper hotline, he hoped that the reporter could pass the experiment. To help you analyze the most cost-effective of these lights. The day before yesterday, the reporter selected incandescent lamps, energy-saving lamps and LED lamps in the market to test the laboratory of China Saibao (Ningbo). Reporter Yang Jiang Pick LED lights to "four look" As LED lights become more and more "sweet", the market's dazzling styles make consumers unable to start, so how to choose high-quality LED lights? Wang Linkang, secretary general of the Municipal Lighting Association, told reporters that "LED products are not good enough, consumers can pass Visual identification and simple testing to pick." The first step is to look at the outer packaging of the LED lights. The state has requirements for the outsourcing of LED lights, and must indicate the rated voltage, voltage range, rated power, and rated frequency. High-quality LED lamp products have good packaging and printing quality, clear writing, wiping with a damp cloth is not easy to be wiped off, and poor quality products are poorly printed, fonts are fuzzy, some products do not even have a manufacturer's logo, and there is no relevant certification mark. The second step is to watch the LED tube. Putting together multiple LED lights of the same product to watch together, the quality manufacturers generally have good consistency, and there will be no unevenness of the pipe surface. There is a slope between the interface of the high-quality LED lamp and the screw port, which is convenient for installation and prevents the installer from getting an electric shock. Some of the poor quality LED lamp interfaces are rounded and there is a safety hazard. Pull it slightly at the screw buckle, if there is looseness at the interface, it means there is a problem with the quality and should not be purchased. The third step is to explore the temperature. Put the LED light on the electric base for a few minutes. Generally, the temperature of the LED light rises slowly. The temperature touched by the hand is low. If the temperature is high, the life of the LED light will be affected. Do not buy it. The fourth step is the interference test. When the LED light is working, the radio can be turned on and placed near the LED light. The lower the noise emitted by the radio, the better the quality of the LED light. â– Test preparation Test 3 kinds of lights with the largest metering instrument in our city Which of the three common bulbs, incandescent, energy-saving, and LED, consumes a lot of energy? The reporter bought three common bulbs on the market for comparison experiments. The price of these 3 bulbs purchased by the reporter ranges from 3 yuan to 50 yuan, of which the incandescent lamp has a rated power of 100 watts; the energy-saving lamp has a rated power of 20 watts, which is equivalent to the brightness of a 100-watt incandescent lamp; and the LED lamp has a rated power of 9 watts. The corresponding incandescent lamp has a brightness of 100 watts. The test instrument selected this time is a steel metering integrating sphere with a diameter of 3 meters. According to the Saibao staff, the steel metering integrating sphere is a hollow sphere for photometric measurement. The inner surface of the ball is coated with a diffuse white paint, and the illumination in either direction of the ball is equal. In the sphere, there are various kinds of photographic instruments and current and voltage measuring instruments, which can test the light source, luminous flux and color temperature of the light source inside the ball. The 3M metering integrating sphere in Saibao Lab is the largest metering instrument in our city. Test result (1) LED lamp energy saving and longevity In the sphere of the 3M metering integrating sphere, the staff connected the incandescent lamp to the lamp socket of 220 volts, closed the sphere, waited for 5 minutes, and measured the current to measure the actual power of the bulb. After testing, it was found that the incandescent lamp current was 0.412 amps and the measured power was 92.56 watts. Similarly, the energy-saving lamp is connected to the lamp socket of 220 volts. Since the energy-saving lamp has a light stabilization time of 10 minutes, it is necessary to wait for the energy-saving light to stabilize before testing. After testing, it is concluded that the energy-saving lamp current is 0.1365 amps and the measured power is 18.65 watts. Connect the LED light to the lamp holder, close the sphere, and measure the LED lamp current to be 0.04579 amps, and the measured power is 9.237 watts. From the above data, the measured power of incandescent lamps is much higher than the power of other lamps, which shows that the power consumption is the highest. If you look at the price, a 9-watt LED light market price is 50 yuan, while incandescent light only 3 yuan, energy-saving lamps need 15 yuan, the purchase of an LED light is equivalent to the purchase of 16 incandescent lights, 3 Energy saving lamp. The staff told reporters that although the price of LED lights is expensive, from the power consumption and lamp life, the life of LED lights is generally more than 20,000 hours, while the life of incandescent lamps is generally only 1000 hours, and the life of energy-saving lamps is generally more than 6000 hours. . In terms of power consumption, with 1000 hours of continuous operation as the standard, incandescent lamps need to consume 92.56 kWh, energy-saving lamps are 18.65 kWh, and LED lamps are only 9.337 kWh. Calculated with a residential electricity fee of 0.5 yuan, 1000 hours for use, incandescent lamps need 46.28 yuan, energy-saving lamps need 9.325 yuan, and LED lights only need 4.67 yuan. It seems that using LED lights is the most cost-effective. Test results (2) LED lights, the brightest incandescent, soft, energy-saving lights, glare In the ball, the staff connected 3 experimental bulbs to the 220-volt lamp holder. Since the incandescent lamp and the energy-saving lamp have light stabilization time, the energy-saving lamp is stable for 10 minutes, waiting for 10 minutes. The combination of exposures of the same sensitivity, aperture and shutter speed took a set of photos of the three lamps and observed the degree of reflection in the sphere under different bulbs. It can be seen from the photos that although the LED light is only 9 watts, the brightness is the highest. The incandescent light is slightly weaker and the light color is yellow, but the overall sensory light is relatively soft. Energy-saving lamps are brighter than incandescent lamps, darker than LED lights, white in color, and glare in direct view. From this point of view, it can be seen from the color temperature data that the color temperature of the incandescent lamp is 2665K, which is warm; the color temperature of the energy-saving lamp and the LED lamp are both around 6000K, which is a cool color temperature. Why is the 9-watt LED lamp even brighter than the 20-watt energy-saving lamp and the 100-watt incandescent lamp? The staff told reporters that the conversion rate of the LED lamp is higher than the other two lamps, and only a little bit of power can be emitted. Bright light. By the same token, incandescent and energy-saving lamps have a relatively low conversion rate, and the conversion of electricity into light energy is converted into heat energy and is consumed. After 10 minutes of use of the three lights, the reporter used the temperature to detect the temperature of the incandescent lamp. The temperature of the incandescent lamp was too high and could not be touched by hand. Although the energy-saving lamp was also hot, it was not hot, and the LED lamp was only close to the lamp. Micro temperature. It can also be seen from the data measured by the test integrating sphere that the luminous flux of the LED lamp is 1021 lm, and the luminous flux of the incandescent lamp is only 934.04 lm. High pressure Air compressors have a multitude of uses for leisure and maintenance at home or in businesses to get work done efficiently and safely.
Using various pneumatic tools for home projects
Pintball air compressor for recharge paintball rifle gun
air compressor gun Features: Air Compressor Air Compressor,Pcp Air Compressor,Paintball Air Compressor,High Pressure Air Compressor SHIJIAZHUANG TOPA TRADING CO., LTD. , http://www.topahydraulic.com
Portball Air Compressor pump for Blowing up balloons or inflatable products
Adding air to tires on bikes and on vehicles
Cleaning crevices and tight spaces on equipment or other durable items with directed air pressure
1.This 300bar air compressor pump Long life, safety explosion-proof.
2.This portable air compressor Integral cylinder head without external gas path pipe.
3.The 300bar compressor with built-in water separation system, is not easy to carbon deposit.
4.Our Pcp Air Compressor all with Built in integrated oil-water separation, imported super wear piston ring.