Remote Living > Lighting
LED Lighting for 24 VDC Ststems
Mary B:
https://www.superbrightleds.com/search/led-light-fixtures/24%20volt/
https://www.superbrightleds.com/search/off-grid-led-lighting/24%20volt/
https://www.superbrightleds.com/search/led-boat-lights/24%20volt/
armadillo:
I think superbrightleds is giving us all the rope we need to hang ourselves with. Like ebay, there are lots of LEDs around claiming to be good for 24VDC, but the voltage range is too low and charging batteries will kill them.
Look at the voltage range they give on this one:
https://www.superbrightleds.com/moreinfo/off-grid-led-lighting/a21-led-bulb-80-watt-equivalent-24-vdc-800-lumens/4298/#tab/Specifications
joestue:
my guess is there is a boost converter in there to bump 18-24 volts up to 33-36v or so needed to supply 10 leds in series.
armadillo:
Some of the Sundanzer DC freezers are designed to run either 24 VDC or 12 VDC, hook it up the same way either voltage and they work just fine. But the max allowable voltage is rated at 30 VDC or so.
Running 10 bulbs in series seems like it would require 10 times as much voltage ? I prefer a lighting circuit wired in parallel unless the economics of doing otherwise really makes sense and the system is uncomplicated.
joestue:
--- Quote from: armadillo on September 10, 2017, 10:29:46 PM ---Some of the Sundanzer DC freezers are designed to run either 24 VDC or 12 VDC, hook it up the same way either voltage and they work just fine. But the max allowable voltage is rated at 30 VDC or so.
Running 10 bulbs in series seems like it would require 10 times as much voltage ? I prefer a lighting circuit wired in parallel unless the economics of doing otherwise really makes sense and the system is uncomplicated.
--- End quote ---
who said anything about bulbs in series?
if you want to run 24v electronics that can't handle 31 volts for equalizing, you could equalize half your battery bank at a time. that would leave you with 15.6 + 13.6 volts which would be 29.2 volts.
28 volts should be enough for equalizing anyways.
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