Why LED lamps highest price?

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Recently, the public Liu to the supermarket to buy light bulbs, lamp array can be on the shelves, let him pick dazzled. "In addition to traditional incandescent and energy-saving lamps, there is a LED light, I do not know how the lighting effects of the lamp?" Incandescent, energy saving lamps, high LED light which price? Found by experiment, home lighting or LED lights cost .

LED lights 16 times more expensive than incandescent

Currently, the incandescent lamp is facing the situation of being phased out, energy-saving lamps become the mainstream market. Reporters saw at a large supermarket, energy-saving lamps become flagship product, the rise of new LED lights are difficult to buy, while the incandescent lamp has been hard to find. Judging from the appearance, with a different shape CFL lamp, LED lamp bulb is spherical, similar to incandescent lamps. But the packaging label display, LED lamp power is far lower than ordinary incandescent lamp.

"You're holding the bulb is 5 watts of power, lighting brightness equivalent to 40 watt incandescent." Supermarket shopping guide told reporters, pick brightness LED lamps and energy-saving lamps is to look on the box marked with the corresponding incandescent lamps wattage. Reporters also noted a marked additional 3-watt LED lamp, its illumination brightness equivalent to 25 watt incandescent.

Shopping guide told reporters that many people still choose incandescent or energy-saving lamps, buy LED bulbs are not many customers. "LED lights are too expensive." Reporters noted that a certain brand of 5-watt LED lamp price of 49.8 yuan, 16 times more than other energy-saving lamps or incandescent expensive. However, we understand the life of this LED lamp marked up to 15 years.

Most power-hungry incandescent

So, these types of bulbs to use the common market of the actual results so far? Here comparative tests (3) of the common market on the light bulb.

3 bulbs are incandescent, energy saving lamps and LED lamps, ranging in price from three yuan to 49.8 yuan. Wherein the incandescent lamp rated 40 watts, energy-saving lamp rated power of 8 watts, which corresponds to the nominal brightness 40 watt incandescent, LED lights and a power rating of 5 watts, which also corresponds to the nominal brightness of 40 watts incandescent.

Experiment, in a dark room, these three bulbs are connected to the lamp socket 220 volts, the current was measured with an ammeter to measure changes in the actual lamp power. Meanwhile, the three bulbs box placed at a distance of 30 cm bulb with a fixed camera exposure shooting box reflective case, as intuitive feelings distinguish three bulbs.

Through the test current, and soon it obtained the actual power three light bulbs. An incandescent lamp current of approximately 0.18, found about 40 watts of power; energy-saving lamp current of approximately 0.035 Ann, measured about 7.7 watts of power; LED lamp is about 0.021 Ann, measured about 4.6 watts of power. From these data point of view, the highest measured power incandescent lamp, is the most power-hungry.


LED lights the brightest and most "cold"

So, the actual lighting effects three bulbs and how? In the same combination of exposure to shoot a group photo, record the different light bulbs pack reflection, the photo display, LED bulbs, although only five watts of nominal power, the brightness but the highest. Incandescent lamp brightness is slightly lower, although sporadic yellow looks very bright, but it feels relatively soft. CFL lamp shape back shape, a larger light-emitting area, but the white color, when you look slightly harsh.

With the equivalent of 40 watts or 40 watts, why lighting effects there's the difference? This is because, incandescent and energy-saving lamps are light to the surrounding divergence, and LED lamp light is emitted in one direction, so it is more than the other two bulbs more brighter.

In the heat, the use of incandescent bulbs in two minutes after the temperature is too high can not touch it directly, although significant energy-saving lamps fever, but the hand holding the lamp does not feel very hot, while the LED light bulb is minimal, only light bulb close to the mouth, can feel slightly warm when touch.

LED lights highest price

Just from the price point of view, buy a LED light, equivalent to the purchase 16 incandescent buy an energy-saving lamps, the equivalent spent nine incandescent price. Buy LED lights clearly not cost-effective energy-saving lamps and incandescent lamps. But count factors such as power consumption and lamp life, the LED lighting life of 15,000 hours, equivalent to 15 incandescent or energy-saving lamps and three. On consumption, incandescent need to consume 600 kWh, energy-saving lamps 115.5 degrees, while the LED lamp is only 69 degrees.


According to 0.48 yuan per kilowatt basis, the use of 15,000 hours, electricity generated using incandescent lamps 333 yuan, energy-saving lamps to 139.44 yuan, while LED lights only 82.92 yuan. If long-term use, or the most cost-effective LED lights, and the best lighting effects.


Energy-saving lamps do not worry?


Living room chandeliers, desk lamps, bedside lamps ...... At present, energy-saving lamps universal access to family, welcomed by consumers. However, controversy has continued energy-saving lamps, "radiation carcinogenesis" and "discontinuous spectrum hurt the eyes," the statement caused a lot of controversy.


Energy-saving lamp is actually a compact, self-ballast fluorescent lamps. When energized, the lamp inside the mercury atoms release ultraviolet light invisible to the human eye, the UV lamp hit the inner wall of the phosphor coating, and then transfer into visible light. However, it is precisely this road the invisible ultraviolet light, so that energy-saving lamps labeled a "radiation lamp" hat.


It is understood that energy-saving lamps will indeed release a small amount of ultraviolet light, but in fact, all the lights will be doing. UV content of CFLs was too low, in that people can afford. For the public, to deal with energy-saving lamp radiation has a variety of initiatives, the most direct way is to buy low-E energy-saving lamps. The second way is to check the product before purchasing energy-saving lamp test report, in accordance with the "field strength shall not exceed 200 V / m, magnetic field strength should be less than 10 micro Tesla" standard purchase.


When light radiation passes will continue to weaken as the distance, away from energy-saving lamps, can further reduce the chance of injury. Therefore, to be safe, it is best to make energy-saving lamps to maintain a certain distance from the body, in general, as long as they maintain a distance of 1 meter CFL is safe. Best not to choose to use energy-saving lamps in the head position relatively close distance, such as: bedside reading lights and so on.


A more important question about energy-saving lamps, lamp waste is recycled, because mercury lamp would cause great environmental pollution, mercury and toxic substances belong to the body at once inhaled more than 2.5 grams can cause death. The public when using energy-saving lamps must prevent damage, waste lamp shall be marked to remind, to avoid harm to others.


October ≥60 Wapu ban incandescent lighting


Just opened in 2014, "ban incandescent" are listed on the delisting agenda in each country. From January 1, the US market began to stop selling the best-selling 40-watt and 60-watt incandescent, South Korea, Thailand, the Philippines have also have to take measures to promote energy-saving lamps. October 1 this year, China also will ban the import and sale of 60 watts and above ordinary incandescent lighting. Industry insiders said, LED lighting market suddenly "lit" up, will open in 2014 to replace the light source in the world.


Reporters learned that, in fact, in 2011, China will have a phase-out incandescent schedule, in accordance with incandescent phase-out plan, after the transition period, 100 watts and above ordinary incandescent lighting came into effect October 1, 2012 banned the import and Sales. This year will enter the third stage, from October 1, 2014 banned the import and sale of 60 watts and above ordinary incandescent lighting. October 1, 2015 to September 30, 2016 for the mid-term evaluation period; from October 1, 2016 banned the import and sale of 15 watts and above ordinary incandescent lighting, or, as the mid-term evaluation results to adjust.


Illuminating Engineering Society experts say, emitting heat generated by the incandescent tungsten filament, only 5% in the use of electricity for lighting, the remaining 95% of the total consumed by the heat. Energy-saving lamps is 80% of the electrical energy can be converted into energy, LED lights can be directly put electricity into light, lower power consumption. "After the light source to replace energy-saving lamps and LED lights will occupy lighting market."