Electrician please comment solar off grid

MidnightSun72 said:

Most led strips and COBs want anywhere from 10V to 60V.

I'd definitely run higher voltage minimum 48V.

I think losses on 12V would be crazy without running really big wires right up to the fixtures.

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You size the wire off the amperage, not the voltage. The insulation needs to be rated for the voltage from what I have seen.
They make some nice solar regulators, you could charge a few batteries wired in series to get the voltage you need.

Some remote sites I worked on had 4x4 solare panel, 4 deep cycles at 24v, sometimes a/c power. Had a regulator with a temp sensor built in that stopped charging the batteries when they got warm.
A relay switched between whichever power had the highest voltage. They ran them so the solar was always slightly higher V than the a/c to keep it on solar as much as possible.
This one https://www.solar-electric.com/sunsaver-ss-20l-24v-solar-charge-controller.html?gclid=Cj0KCQjw5uWGBhCTARIsAL70sLKng9hsp1potlKXxTxAc3NTVDnPUj8nNM3rmaVaK5u84K92JhHxlIsaAurUEALw_wcB

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Roy O'Bannon said:

You size the wire off the amperage, not the voltage. The insulation needs to be rated for the voltage from what I have seen.
They make some nice solar regulators, you could charge a few batteries wired in series to get the voltage you need.

Some remote sites I worked on had 4x4 solare panel, 4 deep cycles at 24v, sometimes a/c power. Had a regulator with a temp sensor built in that stopped charging the batteries when they got warm.
A relay switched between whichever power had the highest voltage. They ran them so the solar was always slightly higher V than the a/c to keep it on solar as much as possible.

Click to expand...

I didn't say you size the wires off the voltage. I said at that low voltage you need a larger diameter wire to avoid voltage drop.

also on such a low volt system 12V that would force your amperage up anyway. A 600W light at 12V = 50a

I'm not talking about 12v mini LDD drivers etc
I'm talking 1000w dc to DC which has an input range in line with solar panels which output 48v which a lot of quantum style boards use.
This would eliminate the need for a battery, solar charge controller, etc. But if its cloudy, or dark you won't be getting much, if any light.