4. the photovoltaic panel must be installed in a place that can receive the sun to the greatest extent

Many customers buy solar lamps because they are easy to install, do not require cables, and do not consider whether their environment is suitable for installing solar lamps. Will the light work well in the location where you have less than 3 hours of sunshine? Your photovoltaic panel and the lamp are wired for more than 20 meters. Can the power of the lamp be always unsatisfactory? The best wiring distance between photovoltaic panels and lamps is 5 meters, the longer the connection, the lower the conversion efficiency.

5. Is the battery of the solar lamp a brand new battery?

The place where I live is the capital of lamps, and all kinds of lamps and accessories are available. The batteries sold by the battery suppliers I know are all disassembled batteries for new energy vehicles. Both ternary lithium and lithium iron phosphate batteries are disassembled batteries. The reasons are: first, brand-new batteries are expensive, and few manufacturers can use them; second, brand-new batteries are supplied to major customers such as new energy vehicles, even if they have money, they can’t buy them.

So is the disassembled battery durable? The answer is that the disassembled battery is also very durable. The lamps we sold 3 years ago are still in use by our customers. There is a complete set of testing methods for disassembled batteries, and high-quality batteries can be obtained as long as they are strictly screened. The test here is not the quality of the battery itself, but the human nature.

6. The difference between ternary lithium battery and lithium iron phosphate battery.

The batteries we use are basically ternary lithium batteries, and the ones we recommend to customers are also ternary lithium batteries. Reasons for not using lithium iron batteries: First, it uses inert materials, which makes it difficult to detect its quality; second, its low-temperature performance is much worse than that of ternary lithium.

The point here is that if the temperature in the southern winter is not lower than zero degrees, you can buy iron-lithium batteries, and it is not recommended to buy iron-lithium battery solar lamps if the temperature is below zero.

7. The more lamp beads, the higher the brightness?

More and more manufacturers are keen to make as many lamp beads as possible, because when customers see so many lamp beads, they will think that the material is sufficient and the quality is good. Anyway, the lamp beads are worthless. However, it is not the lamp beads but the battery that maintains the brightness of the solar lamp. How many watts of power the battery can provide to the lamp, the lamp can work at how many watts of brightness. Simply increasing the lamp beads will not increase the brightness, but increase the resistance and increase the energy consumption.