Is there anyway to run 300W, low voltage lighting more than 200 ft in a
straight run? I would like to run it down the length of our long driveway,
but everything seems to be limited to 200ft with 12G wire. It seems you can
buy bigger transformers, but you then run separate legs from the same
source. Not a help in this situation.
Thanks in advance!
I don't believe that a bigger transformer is the answer. The problem
is the voltage drop due to the wire resistance. For this reason if the
run is too long the lights at the end of the run will be dimmer. One
way around this is to increase the diameter (i.e. lower gauge) of the
wires. I don't know what you need for 200 feet or even if it's
possible but there are charts for this. This is one I found for
WIRE SIZE 35W 50W 75W
18 gauge 8' 8' 6'
16 gauge 12' 12' 10'
14 gauge 16' 16' 14'
There is another way to do it. After the initial run of 200 feet or so,
you can install a simple in-line booster transformer, which will step the
voltage back up to 12 volts after the slight loss at that point. I don't
recall the price range, but I don't think they cost much.
I don't recall what **exact** name they give it, but it is in fact a
step-up transformer, and is made for the exact circumstance that you
Good Luck !!
By far the easiest (and cheapest) solution would be to use a few of the
solar-powered yard lights. They are surprisingly bright, and I've seen
them on sale for as little as $5 apiece.
Cheers -- Pete Tillman
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