China solar street lights

With the increasing popularity of solar lights, distributors and importers in different countries have begun to import LED solar lights from the countries where solar lights are produced, like China. In the beginning, Some of them are relatively unfamiliar with solar lights, they are easy to enter some misunderstandings. Here, we’d like to share with you a few mistakes that are often made when buying solar lights, for your reference, and everyone is welcome to discuss and we can learn from each other.

Mistake No.1  The larger the wattage, the better

Everyone is habitually thinking that solar lights are the same as ordinary LED lamps. The greater the wattage, the higher the brightness. In fact, this is the biggest misunderstanding. Especially solar street lights, solar flood lights, if the supplier tells you that it is 200W, 300W, in most cases it is only the wattage that can be achieved theoretically by the LED. In actual work, it will not reach 200W, 300W at all.

Therefore, when buying, you should pay more attention to the actual working wattage. Remember, it is the actual working wattage. The theoretical power of the LED is useless because when the solar lamp is working, it will never reach this theoretical power. What you should pay attention to is the actual working power.

P.S. For the same lamps, honest suppliers say 30W, dishonest suppliers say 200W, honest suppliers will be rejected by buyers who are not familiar with solar lights, so it is difficult for honest suppliers to sell their products. Therefore, in order to follow the general specifications of the market, almost all suppliers now mark the wattage of solar lights according to the theoretical wattage of LEDs.

In any case, when you are choosing to buy solar lights, you must not be confused by 200W, 300W, pay attention to his actual working wattage, it is right.

Mistake 2. The brighter the better

Solar lights are significantly different from ordinary LED lamps, cos the power supply of solar lights is limited, which is determined by the power stored in the battery. Therefore, the limited power supply of solar lights determines that their lighting time is limited. This is completely different from ordinary LED lamps, because ordinary LED lamps can get power supply at any time and are always on (unless it is a power off).

As we know, the total solar light lighting power is equal to lighting brightness × lighting time, therefore, under the condition that the total electricity stored in the battery stays the same, the solar light brightness is in reverse proportion to the lighting time of the solar light. Therefore, when you’re considering buying led solar lights, you need to take into consideration both the solar light brightness and lasting time.

When some buyers are checking samples from different vendors, they only compare the brightness at the very beginning, maybe only few minutes light on, they pick the one with highest brightness, and they think it is the best one to purchase. That’s incorrect. Remember to keep the solar lights on for the whole night, or at least 8-10 hours, keep checking the brightness change after every hour. In most cases, you will find the brightness drop very fast or lasting time too short happen to the sample which you think most bright at the beginning.

Therefore , it is not right to only consider the brightness and ignore lasting time too short, and for another, the solar light is designed with long-lasting time but the brightness is super low, then the solar light can’t meet the lighting required in applications.

Mistake No 3. The larger the battery capacity, the better

The solar light is actually a complete system, which mainly includes solar lamp body, batteries, controllers, and solar panels. We need all these parts to work in coordination to ensure that the solar lights work to our expectations. The size of the solar panel largely determines the ability of the solar panel to absorb solar energy. How much solar energy the solar panel can absorb in a day determines how much electricity can be stored in the battery a day.

Therefore, it is not difficult to understand that if the size of the solar panel has been determined (especially an integrated solar lamp), then the battery capacity required can be basically determined. For example, for a 45W solar panel, we usually use a 40AH battery. Some customers will think, I want the supplier to switch to 80AH batteries, so that the solar lights be brighter and longer lasting. The answer is no. In most cases. Because a 45W solar panel cannot create enough power for 80AH battery to store. Even if you switch to a higher-capacity battery, the battery is not fully charged every day, and it does not make any sense.

So stop expecting high brightness and long lasting time both when you are buying the solar lights with so small solar panel.

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