I was wanting to run a 2000 foot piece of 12 volt DC LED strip lighting. The LEDs come in 16 foot rolls and draw 20watts and .4amps per roll. So doing basic math I would need 125 rolls of lights and a power supply that could handle 2500 watts and 50 amps. I was planing on running them in parallel so i was going to run two 6 gauge wires 2000 foot long each and just attaching the led strips to it every 16 feet. Now here is my question I need help with. I was worried about line voltage drop. i was wondering if there would be enough voltage at the end of the line to even power the LEDs. Or would i have to run 120volt AC line and then attach a AC/DC converter to each LED strip to drop it to 12volt DC. If i ran the 120 volt AC line 2000 feet with 50 amps drawing on it then by the calculator it would have 25 volts at the end of the line. Would a standard 120vAC to 12vDC converter even work if you were plunging it into a 25 volt a/c outlet?