I'm using a Magnitude M200S transformers for a residential application (my kitchen) running 6 WAC HR-86 Under Cabinet Button Lights. Each light is spaced about 2 feet apart from one another. The transformer is 110/120v in, 12v 200watt out. The lights are 12v/20 watt each.
The 1st light in the run is about 15 wire feet from the transformer. The last light is about 30 wire feet from the transformer. Although the lights are within 2 feet proximity to one another, two of them have about 15 wire feet between them as I had to run a loop around some cabinets.
I just got done making final connections and when switched on the lights are very dim. Each is less bright than a birthday candle, as a comparison.
I used 12 gauge copper stranded wire from the transformer to the lights. The supply wire (a/c side) to the transformer is 12/2 bx.
I would imagine I have one of two problems as to why the lights are dim. Too much resistance (a voltage problem) or too little watts (a transformer capacity issue).
Some thoughts I have are run two transformers in series to boost voltage output. Replace the transformer with a larger capacity (300watts) transformer. Or replace the transformer with a 24v version.
I don't think it is a capacity (watts) problem. I suspect the length of the feed and return wires is too long and creating too much resistance.
Does anyone have any experience with this or pointers on next steps?
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