Some Suggestions on Improving the Energy Saving of LED Lighting
LED lighting is the biggest selling point of energy-saving, but often the market is limited by the cost of the product, materials, and cooling technology, making energy-saving demands because of the light efficiency factors have a discount. Energy is mainly reflected in the following two aspects:First, the maximum energy into light energy;Second, the light to maximize the control to the senses for the person.LED applications from the current problems encountered by the point of view, the above two points is clearly not good enough. The first is the LED “hot” problem, since there is cooling problems, it shows that the LED heat production is considerable. We can simply analyze what LED problems with LED heat production related:1. Since the LED heat production can affect the heat to the point of view, the temperature can be seen in general. On the LED light source sealant, what kind of material can withstand up to tens of thousands of hours of hot baking? Of course, even with such high-quality materials, but the high price will be prohibitive.2. On the life issue, in fact, very simple, LED chip heat dissipation will affect the life of the LED light source itself, resulting in light failure; In addition, LED lamps will affect the life of aluminum plate.
3. It is precisely because the heat generated by LED lights, so the need for heat. Compared to lightweight plastic, metal thermal conductivity is much better, but also much more cumbersome, of course, a lot of expensive.Followed by the problem of light perception. Why do we still see blurred vision under high-lumen LED lights? Specific reasons are the following two points:1. Our eyes long-term adaptation to natural light, and at present almost all of the LED lighting products are monochromatic light. Relative to our eyes, whether it is warm or white, monochromatic light can not always restore the color of the object itself.2.LED lights produce monochromatic light though lumens relatively large, but not far. So we have such a feeling in the LED lights, from the lights near the special glare; from the lights and feel the brightness is not enough; contrast, the warm effect to be slightly better.Using high-power light source can reduce the heat of LEDWhen the 3528 light source vacated when the 5050 light source before the position began to shake. Many friends in the earlier exclusion of 3528 light source, the reason is the application of 3528 is relatively narrow, not so easy to sell 5050. Now, those who have complained about the 3528 light source of friends in the appropriate time earned a pot of gold. Now more than 70% of indoor lighting products are used 3528 light source. In fact, although the use of 3528 light source can save costs, but also bring some technical problems.In general, a 1W light source produces about 3000 Joules of heat for an hour; and two 0.5W light sources produce about 3500 Joules of heat a hour. So the energy-saving terms, the latter’s low light efficiency. To a 5W bulb, for example, if the use of a single 1W light source, a single source of heat for about an hour of heat 15K joule; and 0.5W light source, the light source for an hour of heat production is about 16.5K joule .From this, the same power, the use of 3528 light source than 5050 light source to produce heat, that is under normal circumstances, the same power lamps, high power light source than the low power light source. At the same time under the premise of the same light source power, with the increase in the number of light sources, aluminum plate heat will be increased accordingly.In addition, 5630 of this LED package, also has international manufacturers in use, but the technical need for a higher threshold, is now a technology companies have the edge to get the upper hand.As we all know, the heat source and the chip has an absolute relationship. Then the control of the lamp when the heat, in addition to considering the use of high-quality chip package of light, but also as much as possible to consider the number of lamp beads. And now many manufacturers in order to meet the market, had to use low-power light source to control the cost to increase market competitiveness. Of course, high-power light source in terms of heat compared to low-power there is no advantage, but with the high-power light source of this weakness gradually resolved and the price of the fall in the late application of the market should have a good performance.Light-sensing problems can be mixed with light or shade treatmentOn the current LED monochromatic light caused by the problem of low color rendering index, many companies have begun to develop a variety of color temperature mix and match lamps. Of course, this effect may still cause the phenomenon of non-uniform light, which on the shade and the lens made new demands. Such as the use of high transmittance of the matte lens is very translucent opal shade.