Why is the LED lamp the most cost-effective?
Date: 2015-11-10 08:13:53 Hits: 340

Recently, the public Liu to the supermarket to buy light bulbs, bulb shelves can let him pick hualiaoyan a superb collection of beautiful things. “ in addition to the traditional incandescent and energy-saving lamps, and a LED lamp, I don't know how to lighting the lamp? ” incandescent lamp, energy saving lamp, LED lamp which cost-effective? Found through experiments, home lighting or cost-effective LED lamps.

LED is 16 times more expensive than incandescent lamps

the incandescent lamp is facing the situation of being eliminated gradually, and become the mainstream of energy-saving lamps. Reporters saw in a large supermarket, energy-saving lamps become the flagship product, the new rising LED light is not difficult to buy, and incandescent lamp has been hard to find. From the appearance, and the energy-saving lamp tube shape is different, LED lamp is spherical bulb, similar to incandescent lamp. But the labeling of the outer packing shows that the power of the LED light is far lower than that of the common incandescent lamp.

“ the light bulb in your hand is 5 watts of power, and the brightness is equivalent to 40 watts of incandescent light. ” supermarket shopping guide told reporters that the selection of LED lights and energy-saving lamps brightness, mainly to see the package marked with incandescent lamp corresponding to the number of watts. The reporter also noticed another note of 3 Watt LED lamp, its lighting brightness equivalent to 25 watts of incandescent.

guide told reporters, now many people still choose to buy incandescent or energy-saving lamps, LED lighting not many customers. “LED lights are too expensive. ” reporter noted that a brand of 5 Watt LED lamp price is 49.8 yuan, more than other energy-saving lamps or incandescent lamp, 16 times more expensive. But it is understood that the LED lights mark the service life of up to 15 years. The power consumption of incandescent lamp

then, how the actual results of the several common market to use the light bulb? Here compares the common 3 models on the market of the bulb.

3 bulbs are incandescent, energy-saving lamps and LED lights, ranging in price from $3 to $49.8. Among them, the incandescent lamp rated power of 40 watts, energy-saving lamps rated power of 8 watts, its nominal equivalent to 40 watts of incandescent lamp brightness, and LED lamp rated power of 5 watts, its nominal brightness is equivalent to 40 watt incandescent lamp.

experiment, in a dark room, the lamp holder three are respectively connected to 220 volts, the measured current with the current meter, to measure the actual power lamp. At the same time, the packing box of three light bulbs is placed at 30 cm from the bulb, and the camera is used to fix the exposure amount to reflect the reflection of the packing box, so as to directly distinguish the difference between the three bulbs. By testing the current

, quickly come to the conclusion that the actual power of three light bulbs. The incandescent lamp current is about 0.18, the measured power is about 40 watts; the energy saving lamp current is about 0.035; the measured power is about 7.7 watts; the LED lamp is about 0.021; the measured power is about 4.6 watts. According to these data, incandescent lamps have the highest power and the most power consumption. The bright

LED lamp is the most “ ”

so cold, the actual effect of three kinds of lighting lamp and how? Shot in the same exposure of a group of photos, reflective, packing box to record different bulb irradiation photos show LED bulb while the nominal power of only 5 watts, the brightness is highest. Incandescent light slightly lower, yellow light appears bright, but feel relatively soft. Energy-saving lamp lamp is in the shape of back shape, light emitting area is larger, but the color is white, look a little harsh.

with 40 Watt or 40 Watt equivalent, why lighting effects is different? This is because the incandescent lamp and energy-saving lamp light is spreading, and the LED lamp light is emitted to a single direction, it is better than the other two bulbs brighter.

in the heat, incandescent bulbs in use after 2 minutes due to high temperature not directly by hand touch, energy-saving lamp is clearly but hold the lamp fever, and does not feel hot, while the LED bulb is very little, only in the light bulb near the mouth, touch can feel warm.

LED lamp

single highest price from the price point of view, buy a LED lamp, the equivalent of buying 16 incandescent lamps, buy energy-saving lamp, is equivalent to the cost of 9 incandescent lamps. Buying LED lights is clearly not as good as energy-saving lamps and incandescent lamps. But in terms of power consumption and lamp life, the LED lighting life is 15000 hours, equivalent to 15 incandescent lamps or 3 energy-saving lamps. In power consumption, incandescent bulbs consume 600 degrees of electricity, energy saving lamps are 115.5 degrees, and LED lights are only 69 degrees.

according to 0.48 yuan per kilowatt basis, 15000 hours of use, the use of incandescent lamps produce electricity for 333 yuan, 139.44 yuan for energy-saving lamps, and LED lamps is only 82.92 yuan. If long-term use, or LED lamp is most cost-effective, and lighting effect is best.

energy-saving lamp power not worry?

living room chandelier, bedside lamp, desk lamp … … at present, energy-saving lamp has entered the family, welcomed by consumers. However, the controversy over energy-saving lamps has been constant, and “ radiation, cancer causing, ” and “ spectrum discontinuities have caused many controversies over ”.

energy-saving lamp is actually a compact, with ballasts for fluorescent lamps. After the power is released, the mercury atoms in the lamp tube release ultraviolet light which is invisible to the human eye, and the ultraviolet light hits the phosphor coating on the inner wall of the lamp body, and then is converted into visible light. However, this is the invisible and invisible ultraviolet light, so that energy-saving lamps have been put on the “ radiation lamp ” hat. It is understood

, energy-saving lamps will release a small amount of ultraviolet light, but in fact, all the lights will be so. Energy saving lamps emit very low levels of UV light, within the limits of what people can afford. For the public, there are many ways to deal with energy-saving lamps, the most direct way is to buy Low-E energy-saving lamps. The second way is to buy energy saving lamps before consulting product testing report, according to “, the electric field strength should not exceed 200 volts / meter, the magnetic field strength should be less than 10 micro Tesla ” standard for purchase.

radiation transfer will continue to weaken as the distance away from, energy-saving lamps, can further reduce the possibility of harm. Therefore, to achieve safety, it is best to let energy-saving lamps and the human body to maintain a certain distance, in general, as long as the energy-saving lamps to keep 1 meters distance is safe. In the distance closer to the head, it is best not to choose to use energy-saving lamps, such as: bedside reading lights, etc..

a energy-saving lamp more important issue is the recycling of waste tubes, because Mercury in tube will cause great pollution to the environment, but Mercury belongs to toxic substances, the body more than 2.5 grams of disposable inhalation leads to death. Citizens in the use of energy-saving lamps must be to prevent damage, waste lamps should be marked reminder, so as not to harm others.

10 month ban ≥ 60 watt incandescent lamps for general lighting

2014 just opened, “ disable ” incandescent lamp in various countries are listed on the agenda of delisting. Since January 1st, the United States market began to stop selling the best selling 40 Watt and 60 watt incandescent lamps, and South Korea, Thailand and Philippines have also taken measures to promote energy-saving lamps. Since October 1st this year, our country will also prohibit the import and sale of 60 watt or more ordinary lighting incandescent lamp. The personage inside course of study expresses, LED lamps and lanterns market suddenly “ bright, ” rises, illuminant replaces 2014 will be opened in the whole world.

reporter learned that in 2011 China will have a plan in accordance with the elimination of incandescent lamp, incandescent lamp out plan, after the transition period, and more than 100 watt incandescent lamps for general lighting has banned imports and sales in October 1, 2012. This year will enter the third stage, from October 1, 2014 onwards banned the import and sale of 60 watts and above ordinary lighting incandescent lamp. From October 1, 2015 to September 30, 2016 for the mid-term assessment period; since October 1, 2016, the import and sale of 15 watt or more ordinary lighting incandescent lamp, or as far as mid-term assessment results are adjusted.

Institute of lighting experts said that the tungsten incandescent lamps by heat generated light, when in use, only 5% of the electricity used for lighting, all of the remaining 95% by the heat consumption. The energy-saving lamp can change 80% of the electric energy into light energy, and the LED lamp can directly convert the electricity into light, and the power consumption is lower. “ light source replacement, energy-saving lamps and LED lights will occupy the lighting market. ”




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