Need help, is this ballast complete?

hi, i found this ballast and its the cheapest i have found so far at £34.50 delivered, but im not sure if its a complete ballast ready to go, as it has no despcription

heres the link: http://www.bltdirect.com/product.php?pid=6334

also at the bottom it has related products and i dont know if i need to buy one of them to get it working.

thanks

nevermind, i brought it.

Its a ballast alright, but you'll need to add some pieces to make it work.