First, how to do the led desk lamp?
Self-made LED lamps are divided into convex head, flat head and concave head, and the concave head has no directionality. As a light source used only at night, such as a width indicator, it is good to use a concave head. It has no directionality and can illuminate the whole reflective bowl. As an indicator light source such as a turn signal, a convex lens should be used in principle. It is a condenser, with small projection spot, high brightness and strong projection directivity, and is not easily affected by external illumination. However, the brightness of ordinary LEDs is far less than that of incandescent lamps, including the so-called super brightness. Compared with incandescent lamps with the same volume and power consumption, there is still a gap in most cases. It is unrealistic to expect to get the effect of a light bulb by a dozen or even a few LEDs. For example, as the light source of Jiaxing's turn signal, the reflector of the original lamp basically has no effect, and the light emitted by LED itself directly illuminates the lampshade. Then, the size of the LED panel should be designed according to the size of the lampshade, and the whole panel should cover the LED, and the LED should be super bright and the light color should be the same as the lampshade.
The finished LED lamps on the market are cheap and easy to use. But you don't have to use super bright LEDs, and you don't have to buy the same color as Jiaxing's lampshade, such as red and yellow lights. To choose. Then, as mentioned above, the finished lamp is incomparable with the original incandescent light bulb, and it takes three or four lamps to achieve the original effect. Although the finished lamp may consist of 12 LEDs. In fact, the application of LED light source in automobiles has just started. Even abroad, this application is exploratory and controversial. Some are pretending, and some are from a commercial point of view.
For example, the life of LED is much longer than that of incandescent bulbs, but incandescent bulbs basically have no requirements for power supply quality. In principle, LEDs should be driven by special power supply, like the method of adding resistance commonly used in China. In fact, the life of LED lamps is not much longer than that of incandescent bulbs! Even if there is a dedicated driver, it is hard to say how much longer the overall life of this driver plus LED circuit can be than that of incandescent bulbs. As for the comprehensive cost and convenience of application, incandescent bulbs are still dominant at present. As mentioned above, is it really cost-effective to replace one light bulb with three finished lamps and 36 LEDs? Do you really save electricity? LED and its supporting technology are developing, and it is believed that one day it will completely replace incandescent lamps.
The above examples are about the methods, steps and suggestions of self-made LED table lamps. From this, we can know that it is complicated to learn the tools and experience involved in making LED table lamps by ourselves, but if we make them by ourselves, we can decide the size, specifications and styles by ourselves, which can be more in line with the actual needs. Interested friends can refer to the products available around them, design a suitable LED table lamp drawing and then operate. I believe you will harvest a unique table lamp product.
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