Transformers
The Multi-Matic compensates for voltage drop by allowing the contractor to select from up to eight different voltage taps ( 12, 13, 14, 15, 16, 17, 18, 20, and 22 volts). This allows the contractor to customize the voltage for each individual run. It's like having eight different transformers in one. With this exclusive feature there is usually no need for expensive #8 or #10 wire (with the exception of an extra-ordinary long run). In addition, you may have wire runs up to 800' instead of the traditional short runs of 100' or less.