Voltage Drop Calculator
Cable -> 1 2 3 4 5 6 7 8 9 Total
Total Watts
Wire Length
Wire Size
 
Volt Tap
 
Recommended Transformer
Total Wire Needed
8 GA.
10 GA.
12 GA.
If distances from transformer exceed recommended lengths and wattages, excessive voltage drop will occur and light output will greatly diminish. Center transformers whenever possible. Make sure cable runs are as short as possible to reduce voltage drop. Size cable and transformers properly for each project. Allow room for growth or additions to the lighting system. PLAN AHEAD!!!