Just a caution for setting up a grow area. Keep in mind your electrical pull on an outlet.
Watts=Voltage x amps
Voltage=strength of the signal or pressure of the signal
Amps=amount of electricity needed
Go through this formula when figuring out what is better for you....110 vs. 220. Most household outlets are rated for 15 amps; when you overload the system you create heat and we all know where that leads!! Play it safe, work out the figures, and have a good grow!!