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Frequently Asked Question
Q: Why it cannot be used to charge electronic equipment?
1. Has electronic equipment or output interface been connected well?
Plug it again.
2. Does solar panel face the sunlight in the correct direction?
After the position of the sun is confirmed, please readjust the direction.
Do not place it in the shadow of trees, telegraph poles and other obstacles.
3. ls the surface of the the solar panel contaminated with dirt?
If the surface becomes dirty, wipe it with a soft wet cloth. Never use thinner or benzine.
4. Confirm the environment or weather. The generating capacity is low in cloudy weather.
Q: Can the solar panel generate power in cloudy weather?
Yes, it can, even though it generates much less power than in sunny weather.
Q: What is the difference between nominal output and actual output of solar panel?
The nominal maximum output power (rated output) of solar battery is a value calculated according to
standard state."Standard state" means that surface temperature of solar battery module is 25℃ and
sunlight intensity is 1000 W/㎡.
Generally actual output is lower than the nominal maximum output power due to the
following reasons:
① Installation environment or weather.
② Characteristics of solar battery.
③ Dirt on the panel surface.
④ The generating capacity decreases due to energy loss.
⑤ When only a part of the solar panels are exposed to sunlight, the power generation efficiency
decreases and the power output becomes weak. Please fully expand the solar panel and do not
shade it from the sun.
In fact, the output power is only 70-90 % of the rated power when the solar power system runs even
in sunny weather.
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