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My friend said he picked 12V because that's what the easily-available LED bulbs are rated at, and he just wanted a simple lights-only system. I guess you could
by 205guy 7y ago
My friend said he picked 12V because that's what the easily-available LED bulbs are rated at, and he just wanted a simple lights-only system.
I guess you could pick whatever voltage you want for your loads and cable runs, but you need to have the appliances you want available (or easily DIY) in that voltage. It would probably be possible to convert down the voltage once, but any more than that and you're introducing loss again.
- Maakuth 7y agoOn the other hand, you could connect 12V lights in series to get them the desired voltage.
- Scoundreller 7y agoThat’s not always a good idea. It is putting more current through each light. And particularly problematic if each bulb has parallel LEDs and they start burning out: then more and more current is put through the remaining LEDs.
- Scoundreller 7y ago120VAC LED lamps will just rectify that 120V to DC and then use a power supply to drop it to around 30V. In other words, a 120VAC LED should work just fine on 48VDC with the same output. It’s also explains why they don’t dim. (Obviously avoid the dimmable ones in this application!)