Alternatively you can tell this by physically seeing the panels.
Solar panel 12 or 24 volt.
Using a 24 volt supply instead of a 12 volt supply greatly reduces the wiring cost to almost half the original cost.
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12 volt panels usually contain 36 individual solar cells each cell at 0 5v comes at around 18 volt for the panel.
The solar panel puts out 6 6 amps at peak.
Is it better to use a 24volt solar system for your home over a 12 volt.
This is so because increasing the voltage of a system causes a reduction in the current through it and in turn reduces the size of the wires you need.
Really you are producing wattage for free.
Voltages above 24 are 24 volt panels.
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The 160 watts solar panel is a 24 volt.
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The reduction in wire size cuts down the costs as the thicker the wire the more costly it is.
Or 8 watts to 16 watts.
Don t get upset because you are loosing wattage.
The higher the voltage the less voltage drop you get on cabling.
You need 4 six volt batteries or two 12 volt batteries.
Any voltages above 12 volt and below 24 volt for a panel that is in full sun is a 12v panel.