[Closed] LED transformer for a ceiling light?

Just replaced 12 G4 10w halogen bulbs in a ceiling pendant light with 1w LED's but the transformer in the light obviously now needs replacing as the LED's are below it's range

The existing convertor is one of those round ones with the hole through the middle where the light fitting attaches
This one (LC110A) - http://dghopestar.appliances-china.com/Product_Look.php?ProID=232096

Struggling to find a 12w replacement that is similar or will fit inside the body of the light unit, they all seem to be of the larger oblong type I've previously fitted to inset ceiling downlighters any electrical/lighting experts out there that can advise or options?
It doesn't have to be dimmable