I know I am late but you can hook the 24v up to the 12v as I do and it heats up very fast just do the math to make sure you don't exceed the amperage of your power supply minus 10% for safety. I use a 25a 24v power supply that I cranked down to 22v and it has worked for over two years.
I know I am late but you can hook the 24v up to the 12v as I do and it heats up very fast just do the math to make sure you don't exceed the amperage of your power supply minus 10% for safety. I use a 25a 24v power supply that I cranked down to 22v and it has worked for over two years.