With the continuous development of the social economy, there are more and more opportunities for human beings to work outdoors and outdoor activities at night, and the lighting requirements for portable charging lamps are becoming more and more demanding. However, it is difficult to find books and materials detailing portable charging lamps and related knowledge. For most people, even for many professional technicians, it is still difficult to fully and deeply understand portable charging lamps. Because portable charging lamps involve many aspects of expertise, such as: optics, optoelectronic theory, light source, electronic technology, battery, charging theory, practical functions, waterproof, explosion-proof structures. Therefore, high-quality portable charging lamps require a team of engineers and technicians to work together to develop. Usually, the user's requirements for portable charging lamps sound simple: of course, the brighter the brightness, the better the lighting time, the lighter the weight, the smaller the size, the more convenient to carry, the more functions, the more uses, the most common Good maintenance, don't burn old bulbs, don't get old batteries, don't worry about battery charging, it's best to be waterproof, drop-proof, or even explosion-proof. The exterior should be creative. Finally, the price is cheaper. The design engineers of the well-known manufacturer Shishi Electric are actually busy looking for "relative balance points" in the above requirements to meet the different lighting needs of different users for portable charging lamps. Without a certain knowledge of lighting, it is difficult to distinguish high-quality portable charging lamps, it is easy to believe in ambiguous misleading, how to distinguish high-quality portable charging lamps, need to understand the following: Is it possible to provide sufficient lighting brightness, continuous lighting time, and practical lighting methods, and is it waterproof, explosion-proof, and anti-drop performance? Users should be aware of the purchase requirements. Portable charging luminaires without electronic technology are low-quality luminaires, and their service life will be greatly reduced; electronic technology can not only protect the luminaire itself, but also provide users with practical functions. Third, what kind of light source Different types of light sources, such as cost, luminous efficiency, and longevity, can vary greatly. Understand whether there is light source protection function, whether there is spare light source; lamps with short light source life and no lamp protection function need to change the light source continuously. If used for a long time, the cost may be more expensive than the lamp itself. Fourth, what kind of battery Find out which battery is used and its actual capacity. The cost, life and charging methods of lead-acid batteries, nickel-metal hydride batteries and lithium batteries are different; do not trust the nominal battery capacity on the battery. If there is no professional testing equipment, the battery capacity can be tested in the most intuitive way, that is, continuous lighting See if the continuous lighting time is consistent with the introduction of the lamp; understand whether the battery has overcharge, over discharge, trickle charge function, portable rechargeable lamps without the above functions, the battery life must not be long. Five, practical functions Whether the illumination angle can be adjusted, whether there is brightness adjustment, whether there is no backlight, whether there is power display, whether there is low voltage reminder charging function, whether there is ultra-low voltage intelligent recovery charging function. Six, shop around three Check whether there are similar products on the market and understand the price ratio. Seven, verification costs If you care about the price, you can check the cost of the material one by one. Eight, after-sales service Can manufacturers provide complete and efficient after-sales maintenance services. Different quality lamps, cost and price are of course different; there is no after-sales maintenance service for no reason, claiming to be a "high-quality" lamp of 50 yuan, no after-sales service, and a set of "high-quality" lamps of 500 yuan. Probably, you should also enjoy efficient after-sales maintenance services. Disclaimer: "Professional engineers teach you how to distinguish high-quality portable charging lamps" by Yueqing Shishi Electric Co., Ltd. Research and preparation, please respect the labor results of others, if you need to reprint, please indicate the source http://Info-12.html.
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Applications
Portable charging luminaires are industrial products that are inseparable from components, structures, principles and a range of quantitative parameters. The parameters can be obtained by calculation or confirmed by physical inspection. If you want the light to be brighter and increase the power of the light bulb (increasing the power consumption), you can increase the temperature of the light bulb, and the light will be brighter, but how long can it be bright? This has led to a series of problems: large-capacity batteries are heavy, not portable, can they be accepted? Large capacity, light weight, small size polymer battery, but expensive, acceptable? The cost of electronic technology related to portable charging lamps, high-quality bulbs, batteries, reflectors, chargers, chassis heat-resistant costs, etc. will increase, can you accept?
The working principle of portable charging lamps is not complicated (it can be done by adding a switch to the rechargeable battery and the light source line, as is the case with low-cost lamps in the low-end market). But high-quality portable charging luminaires are made up of complex small details (light bulbs, reflectors, batteries, chargers, charging principles, electronic technology applications, practical functions, etc.), when the quality of each small detail is improved, the luminaire The overall quality of the team can be improved, and the cost and price will increase.
First, lighting needs
Second, electronic technology 
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