Dyson does not manufacture vacuums that use bags, therefor you would not be able to find a place that sells bags for these vacuums. For a vacuum that uses bags, you might check Best Buy or Walmart.
The Dyson Ball works on pivot points as opposed to traditional 4 wheels. Although the Dyson does have wheels, there are only two on the back and the main pivot point is the ball. The ball allows the vacuum to turn on a dime. The Dyson Ball vacuum works with the same cyclone technology the previous vacuums in the product like use. Instead of having a traditional base, the Dyson Ball uses a ball joint as a pivot coupled with flexible air tubing.
Patented root cyclone technology gives Dyson vacuums years of use without maintenance or loss of suction. The Dyson uses Cyclonic force, like a miniature hurricane, to separate dirt, dust, mites and allergens from the air.
I can even use my dyson on hardwood floors to pick stuff up.
The best vacuum clean on the market by far is the Dyson. The cost is crazy but its ability to clean is beyond compare. It has a swivel head that makes cleaning a lot easier.
45 watts
Hoovers use 1000 - 2000 watts
Abut 20 watts.
189 watts
25 watts.
About 10 watts
it may use 15 to 25 watts