1. Solar lamps and flashlights
In terms of outdoor use, the enemies encountered by solar lamps are actually inconspicuous flashlights. There is no difference in principle between the two. Only solar lamps and batteries are used for solar lamps, while bulbs and dry batteries are used for flashlights. From the perspective of lighting effects, the range of solar lamps is large, but the irradiation distance is close; the illumination range of the flashlight is small, but the irradiation distance is long.
From the point of view of the use and maintenance costs, the battery of the solar lamp should be replaced after a period of use, and the dry battery of the flashlight should be replaced frequently. The dry battery of the flashlight is very cheap, and the price of the battery is much higher.
If you don't use it for a long time, the flashlight should be more popular.
2. Solar lamps and kerosene lamps
In terms of indoor lighting, kerosene lamps are still used in many remote and backward areas. Kerosene lamps are inexpensive and costly to use, but they produce black smoke, while the brightness is not high and the illumination range is relatively small.
Compared with kerosene lamps, the only disadvantages of solar lamps are: high price and high cost of use. Therefore, it is suitable for families with good economic conditions and high requirements for lighting quality.
3, solar lamps and lanterns
The lantern can be used not only outdoors, but also for indoor lighting. Moreover, many of the current lanterns use bulbs and dry batteries. Since it is used for indoor lighting, it takes a long time to use, and the frequency of replacement of the dry battery increases accordingly, which increases the usage cost. The contest between solar lamps and lanterns is actually a contest between batteries and dry batteries. Solar lamps are still very competitive if the battery can guarantee a long service life.
Who is the replacement for solar lamps?
Product research and development, undoubtedly to be market-oriented, closed-door research and development enterprises, it is difficult to imagine its products can be recognized by consumers.
For which regions and people are solar lamps developed? The first thing that can be affirmed is that it has no use in big cities, at least not at present. People use the city power at home, and there are street lights for overnight lighting after going out at night. Even with a brief power outage, a flashlight or an emergency light can solve the problem.
Obviously, solar luminaires are suitable for use in areas where there is no electricity. There is no electricity in the electricity-free area, but people need lighting whether they are at home or at night, and solar lamps can meet the requirements of residents in these areas. Is that the market problem of solar lamps solved? The situation does not seem so optimistic.
Lighting equipment that can be used in areas without electricity is not only a type of solar lighting, but which one of the local residents will choose, depending on the results of the comparison of these lighting equipment.
Let us analyze the advantages and disadvantages of solar lamps compared with other lamps.
Through the above analysis, we can draw the following conclusions: The advantages of solar lighting can only be reflected under the conditions of long-term use, and the service life of the battery must be guaranteed.
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