The current energy saving of LEDs for lighting is unfounded. No matter how you design, you can't afford to measure multiple data. Of course, it is not that LEDs cannot be used. There are also many application cases for designing LED street lamps. However, it must be pointed out that LED street lamps are energy-saving at this stage, which is a big lie! Application is error-free, we have the responsibility to correctly guide new friends, and it is our responsibility to be misled.
Estimated LED lighting arrival time
The arrival time of LED lighting depends on the price of LEDs, in other words, the speed of LED price reduction and the price reduction. The occupancy of LED lighting applications or the replacement of energy-saving lamps depends on the speed of W/lm brightness development.
Now the development of LED per W/lm value is equivalent to the current energy-saving lighting fixtures. Assuming that the LED brightness value is not developing, the price is also equivalent. LED lighting will coexist with the current energy-saving lamps. Of course, this may be small. The high-brightness white LED in the author in 2002 was used in the skin detection CMOS lens front-end light source, 3mm plug-in LED, the price is 10 yuan / only, the current LED is only 0.6 yuan, the price has dropped 17 times in 6 years. In 2006, a batch of 1W LEDs was purchased. The price of 60lm is about 24 yuan. At present, it is only 6 yuan, and it has dropped 4 times in three years.
The price reduction of LED will speed up. If the price level of energy-saving lamps is reached, the LED needs to be reduced to 1 yuan/W, which is the basic condition for the lighting market. According to the current price reduction rate, it is estimated to drop to 1 yuan / W / 60lm level within three years.
If the LED develops rapidly per W/lm value, such as 150 lm/W or higher, the cost will not be higher than the current luminaire. The current energy-saving lamps will surely attract "killing the body". The proportion will be greatly reduced, it is impossible to completely remove the concentrated high-power W number (such as several hundred W) point source LED lighting can not be achieved.
150lm/W is currently in the laboratory, it is estimated that it can be commercialized in two years, and commercialization of large-area lighting can only be achieved in two years. Real energy savings and policies will accelerate adoption, but it will take at least five years. Don't worry about the price, the price is not what you can decide, the market needs this process. The LED lighting trend is certain, but from the time of price reduction, it is bound to have no good market results in the short term, even if you try to reduce the price, it is also "fur". From the time point of view, LED lighting research now requires more investment, and the incubation period is longer.
It is recommended that manufacturers do not take LED lighting as their main business for the time being. As a future strategic study, do not consider cost as the main item, and high-quality products to cultivate high-level products. At present, the plug-in 5mm LED can only be used as lighting. It is recommended to give up as soon as possible. This old-fashioned package is designed for the indicator light, with poor heat dissipation and severe light decay. The package consumes too much material and seriously hampers future price reduction plans.
From the current situation, the 0.5W package is the most suitable way to replace the fluorescent tube with LED. The heat dissipation conditions are easy to realize, the light efficiency conditions are high, and the cost of the chip package is significantly reduced compared to 5mm.
When will LED lighting go to the application peak?
It is difficult to have accurate time in practice. It can only be approximated and has many affected factors. Personally think that price is the main factor. When the LED is equal to the existing energy-saving lamps, only the price will make the LED in the lighting field and keep the same with the existing lamps. I don't know if the netizens really don't understand it, or intentionally take it out of context! We take the LED fluorescent tube, some manufacturers have used the LED price below 2 cents in order to reduce the cost. It is basically difficult to have room for price reduction, because these 5mm LEDs basically have the material cost. According to a lamp with 200pcs, the total price of 0.2 yuan is 40 yuan, and the same power 1WLED has 12pcs. It is expensive now, but it is entirely possible to drop to 1 yuan.
Of course, there are also objections. Some netizens said that it is impossible to drop to 1 yuan. It is difficult to unify the opinions of the forum. The author thinks that it will be. 5mm status and 1WLED light decay are one level of difference. The fact that this world is recognized, some netizens also said, I don't know LED at all, he won't, his 5mm has the same high power light decay. But I haven't seen his LED yet. Designing heat dissipation is not going to be a problem, and designing heat dissipation also requires cost considerations!
I agree with the netizens that lighting is starting to be applied around 2012. In the past few years, the circuit structure will be improved, the appearance ID design will be formed, and a relatively complete lighting control system will be formed. There is no mandatory policy before 2015, and it is difficult for LED lighting to have absolute advantage. Some people often stop the production of incandescent lamps in some countries to associate with LEDs and mislead the public! What is actually affecting the LED lighting process is not incandescent lamps. The key is where we put the existing energy-saving lamps. It has been more than 10 years since the implementation of energy-saving lamps and lanterns, and it has been delayed to stop producing incandescent lamps. How long does it take for the life of energy-saving lamps?
The formation of a relatively complete lighting control system will accelerate the LED into thousands of households. There have always been companies researching on home lighting systems that have not been accepted by the public. The reason for this is that there are too many types of light sources, which require different dimming methods and are difficult to unify. Most of the existing lamp drivers do not support the dimming interface, which brings great development opportunities for LEDs, because LED is the most suitable light source for dimming. We carefully understand the LED driver chip users can easily find that all LED driver ICs will have a PWM interface, the current technology to increase PWM will not increase or decrease the line cost.
I have already found a good communication method for LED lighting. I have been calling for "power carrier technology" for decades. I developed it for the carrier phone in the early days. It has been a failure to promote it for decades! Now what is the remote meter reading, etc., snoring, I think it is not as convenient as the home router to the root line.
It is recommended to use LEDs as the most suitable, mature technology combination, fast and win-win. In combination with the power carrier technology without destroying the existing power grid system, the switch box only needs to change the interface, and the space inside is sufficient. The LED lamp increases the receiving chip and the PWM bridge.
LEDs for home use will adapt to different levels of lighting needs, color temperature, color, brightness, stepless adjustment, reserved music, illumination and other interfaces, floor, wall can be painted, can be turned into a ballroom at any time. Even if you are a customer, you are willing to choose.
Companies that have complete solutions for power carrier technology can get in touch with me and I am responsible for integration. But it must be emphasized that the long-term exclusive agency agreement is signed, otherwise you will not find me if you play your own.
From what aspects LED lighting will start, it is the most common question asked by netizens, and it is relatively concerned.
From the current market understanding, the application of LED fluorescent tube structure will be better developed. From the perspective of home lighting, the appropriate lighting intensity still needs more than 10W energy-saving lighting products. Fluorescent lamps are mostly at 7-15W, and energy-saving fluorescent lamps are available at 20-40W. If you use LEDs to design more than 10W of power, heat dissipation will cause us a headache. Obviously, products like bulb structure are not suitable for LED applications.
The fluorescent tube structure conforms to the LED heat dissipation requirements and also conforms to the existing lamp interface mode. From the cost considerations, most manufacturers design LED lights with a power of less than 20W. From the growing LED brightness, 20W meets the development requirements of future LED lighting sources. When the lm/W value reaches 150lm, it is the LED lighting era. !
Heater is a combination of fans, motors and air heaters combined unit. Applicable to all types of workshops, when the air is free of dust and flammable or explosive gas, can be used as a circulating air heating. Heater can be used independently as a heating, generally used to supplement the lack of heat sink parts or the use of radiators as the duty of heating, the remaining heat load borne by the heater.
(1) horizontal blower: indoor air from the side of the inhalation, the heat exchanger after the heat, the horizontal direction. The jet has a certain range, so that the heating zone is fully blended, the temperature is evenly mixed.
(2) top blower fan: axial fan placed in the bottom of the unit, the air from the side of the heater into the air through the standing heat exchanger, and then sent down. In order to make the jet face to be discharged downward, a guide vane for diffusion is provided at the outlet of the fan.
(3) floor heaters: such units of the large amount of air, send hot air range far, can afford a larger area of heating. When running, the noise is large. Applicable to the factory building heating.
The advantage of heater heating is [2]:
(1) single machine heat supply, in the same heat load, the number of end devices used less;
(2) small heaters can be hanging, do not take up the building area, large heaters floor installation, covers an area of limited;
(3) start heating up fast.
Fan Heater
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