How to know the quality of solar lights?
Solar lights are now widely used. However, there are so many different types of solar lights on the market. Some of them look exactly the same, but the prices are quite different. Why? How can we know the quality of solar lights? In my opinion, there are probably three aspects that determine the quality of solar lamps:
The size of the solar panel is directly related to the ability to charge, The size of the solar panel refers to the power of the solar panel, Equal to the efficiency of the solar panel multiplied by the area of the solar panel. In other words, the size of the solar panel is only one aspect, and it is meaningless if the efficiency is not high. At present, the efficiency of solar panels in the market ranges from 120W to 180W/square. Some manufacturers choose B-type silicon wafer packaging, which is inefficient. Although the solar panels look large, the actual output is not high.
The only indicator of power storage capacity is the battery, The appearance is the same, the capacity is completely different, and ordinary consumers can't test the battery capacity at all. As far as the batteries currently used in solar lamps are concerned, the deciding factors are rough as follows:
A.The actual capacity of the capacitor
Perhaps the batteries you see, such as the 32650 logos, are all 5AH section, but from the results of the market spot-check, the actual capacity is ranging from 3AH-5AH, This is also the reason why many lights do not turn on after two or three hours, or they are fully charged after three or four hours of charging. It is caused by insufficient capacity.
A solar cell is a battery pack composed of multiple cells. The resistors are usually formed in parallel. At this time, if the internal resistance between the cells is different, it will form an internal circulation and consume capacity. One will cause Insufficient output, but seriously affects the life of the battery, In other words, no matter how good the battery is, if the capacity is not strictly divided and assembled, the battery capacity will also be small.
In order to save costs, many solar lamp batteries are not equipped with a protective board to protect the charging and discharging. This is extremely easy to overcharge or over-discharge. Finally, the battery enters a dead state and cannot work. This is why many lamps cannot be charged for a long time. An important reason for incoming electricity.
3.Waterproof structure technology of lamps
Solar lighting is a kind of outdoor lighting. In the sun and rain environment, the waterproof and moisture-proof technology of the lighting is very important.
As far as the current manufacturers of solar lamps are concerned, they are uneven. Many factories do not have the production experience and production capacity of outdoor lamps. If waterproofing is not done, water will easily enter when it rains, causing the components inside to break. It’s important to prevent moisture. Many manufacturers don’t care about it. In a humid environment, the components will rust, or outdoor mosquitoes will enter the hands and secrete substances inside, which will directly corrode the control board or PCB, etc., which will eventually cause the lamps to not work properly.
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