Yet Another Cycling Forum
General Category => The Knowledge => Ctrl-Alt-Del => Topic started by: Poly Hive on 08 March, 2019, 11:31:10 am
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We have a couple of solar driven pumps in the green house which power our tomato growing hydroponics system. The vendor has none in stock and we would like a couple more.
The info on the panels we have is as follows, though frankly to me its Double Dutch as my electrical ken is zero on panels.
Model# GSP 3.5 - 16 (googled this with no success)
Max Power Voltage 3.5V
Open circuit Voltage 9.28V
Max power Current 0.456 Amps
Can someone post a link please to the equivalent panel and possibly a submersial pump to suit? Pretty please.
PH
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Don't have time to be more helpful, but the open circuit voltage is what you'd think of as the voltage of the panel - what you'd measure from it in bright sunlight without a load.
The more current you draw from it the more the voltage will drop. Since power is voltage * current, the maximum power values are the point where you're extracting the most power from the panel.
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Googling those specs turned up this, which appears to be the same model:
https://www.amazon.co.uk/PK-Green-Polycrystalline-Backup-Projects/dp/B075S9C6MY
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Spot on grams that's them for sure.
Now for the pump..
PH