What is the Price of 200w Solar Street Light

200w solar street light

Solar streetlight prices are influenced by many factors. solar street lights with poles and batteries are the 2 most important factors in understanding the pricing. When you are looking for 200w solar street lights, consider the aspects talked about during the article, which will help you choose a suitable, high-quality solar street light to avoid losses.

How much of 200w Solar Street Light

1. The number of lamp beads is not equal to a 200w solar lamp.

There are dozens or hundreds of 200W lamp beads, so the number of lamp beads above has nothing to do with the power. A professional explanation is that the lamp beads commonly used in solar lamps range from 0.01W/piece to 5W/piece, and there are even integrated lamp beads of 10-30W/piece. Different lamp beads produce specific power and use different quantities. Lamp beads with different powers have different prices, so the more lamp beads, the better or brighter it is.

2. The power of 200W is a virtual standard.

Simply calculate the power consumption of a 200W lamp and compare it with the power generated by the solar panel to see if the daily power generated is enough for the daily power consumption. The derivation of the solar street light formula comes from: the solar panel’s power generation for the day = the lamp head’s electricity consumption for the day, so if a slightly more professional manufacturer configures the system, it will follow this principle. Normal solar street lights will not work at rated power all night but will operate at reduced power. We set their full power working time to 5 hours/night.

Calculate the power consumption of 200W lamp: 200W*5H=1000WH

Daily power generation of solar panels = wattage * peak sunshine hours on that day (calculated according to 3 in most areas of the country) * 0.75

Small solar integrated light: 8W*3H*0.75=18WH

Solar floodlight: 24W*3H*0.75=54WH

Large solar integrated light: 88W*3H*0.75=198WH

Obviously, none of the power generation capacity is enough to meet the electricity consumption that day, so they are all false standards.

Conversely, we can also estimate the actual power of these lamps: daily power generation/5 hours of full power operation.

Small solar integrated light: 18WH/5H=3.6W

Solar floodlight: 54WH/5H=10.8W

Large solar integrated light: 198WH/5H=39.6W

3. How to calculate the actual power of solar panels

The boards currently on the market, including losses, are roughly: polycrystalline 150W per square meter, and monocrystalline 1square meter 165W. Of course, if more efficient cells are used, or the overall efficiency of the cells is improved later, the power per square meter will increase accordingly. However, due to cost constraints, solar streetlights cannot use such good cells. On the contrary, cheap lights will only use worse cells. In other words, 150W/165W per square meter is calculated as the larger one for boards with a power lower than 50W.

Small integrated lamp: 0.38*0.17*150W=9.69, the standard 8W is enough

You can calculate it according to this method, and you can see that the power of some boards is also imaginary.

4. Lithium battery capacity comparison

First, look at its nominal specifications, some are marked mA, some are marked mAH, and some are marked AH. First, let’s learn about the units of lithium battery capacity. There are only two units of battery capacity, mAH and AH. The conversion relationship between the two is: 1000mAH=1AH.

Some of the specifications are not clearly marked, and the editor thinks they can be eliminated directly. They do not even respect the minimum consumer’s right to know. Either he is a middleman and does not know the specifications at all, or he deliberately conceals it, and his integrity is questionable.

Comparison of different voltages of lithium batteries: multiply the capacity and battery voltage to get the battery storage capacity and then compare

For example, compared with 36000 mAH and 54AH 12.8V, which battery is larger?

If the battery voltage is not marked, it can be calculated as 3.2V.

36000 mAH=36AH *3.2V =115.2WH

54AH * 12.8V = 691.2WH

691.2/115.2=6, it can be seen that the difference between the two batteries is 6 times.

To see if the battery configuration is reasonable, you can simply use the following calculation to see:

Lithium battery storage power/street light power consumption for the day (actual street light power * full power working time) ≥ 2

Personally, I feel that the discharge depth of the lithium battery should be less than or equal to 50% to ensure the life of the lithium battery.

Let’s choose one from the above and calculate it:

Small integrated lamp: the actual power of the lamp is about 3.6W, the full power working time is about 5 hours every night, the lithium battery is 8000mAH 3.2V

That is: 8*3.2=25.6

25.6/(3.6*5)=1.42

Therefore, from the data we deduced, this battery is a bit on the small side.

 How to choose the right 200w solar street light?

1. Budget.
For an ordinary small yard at home, Clodesun recommends a price range of 30-80 US dollars. The light source power can basically reach more than 10W, and the brightness is enough. Choose several models within this range, make a list of configurations, and compare them. For the same price, choose one with larger configurations. Of course, the final price still depends on your budget.

2. Configuration.
At the same price, choose one with a larger configuration. Another principle is that in areas with good sunshine, choose larger batteries, and in areas with poor sunshine, choose larger solar panels.

3. Pay attention to the manufacturer’s warranty.
At present, the warranty on the market generally ranges from 1 to 3 years. Ask clearly about the warranty policy. If the lamp is broken, how will the manufacturer repair it? Should it send a new one directly or send the old one back for repair? How will the shipping cost be calculated?

4. Try to buy from manufacturers.
If you pay attention to quality, you need high-quality, long-lasting (8-10 year lifespan) solar street lights.

Bonus: ClodeSun Solar

ClodeSun (CLODE Optoelectric Co., Ltd.) was established in 2013. Headquartered in Shenzhen, it is a high-tech enterprise in China. But ClodeSun sells a lot of products in Europe.

Clodesun launched a foldable all-in-one solar street light in 2022, which was designed by our German team for more than 1 year and tested for 2 years. This light stands out among various integrated solar streetlights. It is widely praised by customers all over the world.