How do I choose a solar flood light for a billboard?

Simply put, when you select a solar flood light, you need to select solar panels with reasonable size and light efficiency.

As a person in the industry, a customer asked me what configuration to do for a 6-meter street lamp, I offered 6 meters with 30W is enough, and the price quoted is about USD125, because everyone in the industry knows that this parameter must be reasonable. But the customer asked another supplier, and he offered it is equipped with 6 meters 100W, the price is USD120. In the parameter configuration of the other company I saw, the actual power may not even reach 30W. The solar panel power, and battery capacity, are not as large as I matched, because of the lamp's false standard of 100W, the customer chose him, the price is more expensive than mine, the parameters are smaller than mine, and the profit is higher than mine.

From the real-time that happened to me above, that’s why the solar lamp shows us a false power. The market competition is more fierce, and in order to survive, some manufacturers will exaggerate the power of the lamp, when most of the market say 6 meters of solar street lights with 100W, you say that the actual only 30W or other manufacturers are false standards, the customer must feel that you are fooling him because he contacted 10 suppliers, most of them to match 100W, will he believe you?

In fact, this will lead to the fact that the power of solar lamps will become more and more serious. Because many so-called 200W lamps are bought online, the price is only more than USD20, and the effect is not very bright when installed back. Call to 6 meters with 200W or 300W, or even 500W, and we say that we don't need to match so big, 30W is enough, consumers will say, I installed 100W which was not very bright, you don't talk to me about 30W, just say how much is a 200W? In fact, when encountering such a customer, I am the most helpless, and the power of solar lamps is the biggest victim.