we have many kind of model.each has different specification and price.The specification is :

　ac.230v is transformed,rectified,wave-filled,then is output stabely as 240vdc.
another circuit is output as tv information through condenser.
this product has a beautiful appearance,small volume and two functions ,such two functions,such two plugs as dc power and tv information are supplied to use conveniently only indoor used.

you can look them in our web:

http://www.hongdaelectric.com/bidai/show6%2B%2B.asp?cpfl=Power%20converter