A 220-volt ballast will draw the same watts, but only half the amperes. Wiring several systems for 220 volts as a 110-volt ballast, allows more units to be placed on a breaker circuit. Changing the wiring from 120 to 220 does not save electricity.
|Title||:||Gardening Indoors with HID Lights|
|Author||:||George F. Van Patten, Alyssa F. Bust|
|Publisher||:||Van Patten Publishing - 1997|