Good efficiency is usually the by-product of manufacturing a power supply with good / averagely good parts. To be honest, the decrease in electric cost is pretty small, but considering that you will be having 80 personal computers in your cyber cafe, the savings could add up to over a few ringgit, which may still be small for some though.

This post has been edited by TDUEnthusiast: Apr 19 2012, 09:30 PM