running lights/pumps on 220v

[sullyfish]

I have heard that running pumps/lights on 220v is higher effieciency. Is this true ? Is the savings worth the extra costs of ballasts/ pumps ?
I have not purchased my lights/pump yet for my 180g and I figure now is the time to ask . Thanks

 

[comatose]

i'm no electrician, but as far as i know, the only way you can use a 220v line is if all your hardware like pumps, lights and anything else you plug into it, must all be also rated at 220v.
a lot of foreign counties use 220v lines,
as far as energy savings,you'll save nothing, it's a misconception that you'll save more money from using a 220v over 110v

 

[BeanAnimal]

Not to mention the fact that technically according to the NEC you can't run 220V lighting appliances in a dwelling unit

In theory the 220V pump would run a bit cooler, but in all honesty, you will gain nothing. At a little over 2HP 220V becomes useful due to the current draw of the motor... you just can't get 3HP with 120V

Enjoy.