When voltage at the beginning of a length of cable (at the transformer) is
higher than the voltage at the end, the difference is known as "voltage
drop". The visual indicator of voltage drop is dim light fixtures at the
end of a cable run. The closer the light fixtures are to the
transformer, the higher the voltage and brightness. Voltage drop can be
minimized through proper selection of the cable size based on total wattage
load and the length of run. This "wizard" will help you determine the
proper wire size and transformer to maximize light output with minimum voltage
drop while protecting the bulbs from premature burnout.
Input Total Watts and Length of Wire for each zone in the table below...