So, should you choose 12V or 24V solar panels? Well, there are different technologies to consider, let's discuss it!

The number of solar cells.
A 12-volt solar panel has 36 photovoltaic cells. On the other hand, the 24V panel consists of twice as many solar cells or 72 cells.

Applicability.
The 12-volt panel is suitable for the small basic needs of small families. The 24-volt panel is used in large houses, apartments, offices, banks, hospitals, and so on.

Battery compatibility.
Usually, the solar panel 12v must be equipped with a 12V battery, and the 24V panel must be equipped with a 24V battery.

However, 24V batteries are not available on the market, so you can connect two 12v batteries in series.

Compatibility of Inverter.
12-volt solar panels must be paired with 12v inverters, while 24v solar panels must be paired with 24v inverters.

Charge controller compatibility.
The 12v charging controller must be used with the 12V panel. In contrast, the 24v charging controller is used with the 24v panel.

Here, please note that the rating of the solar panel must not be higher than that of the charging controller.

Expensive.
As a larger power module, 24v solar panels cost more than 12v solar panels.

Q1.  What can I power from my 12v solar panel?
A 12V solar panel can supply the ideal amount of current to help charge smartphones, lightbulbs, RVs, and garden lights.

Q2. How long-lasting are the 12-volt solar panels?
If handled with good care, solar panels could easily last over 25 years. 

Q3. What are the limitations of 12v solar panels?
Firstly, due to the low voltage of a 12v solar panel, it tends to lose a lot of heat over a long distance. Secondly, a 12v panel is only compatible with other 12v appliances or devices.