What is DC used for?

[tanyajack]

Overall, we believe that the Magnifier Engine system is worth your time and money because it’s really an investment. You buy it now, build it as described, and save lots of money on your power bill for years to come. Although it will probably not help you to slash your electric bill completely, it will pay for itself pretty quickly. The great thing is that if you are having problems building your device, you can always contact Darren Holman via email and to get your questions answered. And if for any reason you are not satisfied, you have 60 days to claim a full refund.

 

http://www.youtube.com/watch?v=OFsGw8lNspQ