Halogen Downlighters - CFL Replacements USELESS

IM NOT A HAPPY BUNNY !, I recently purchased some 'energy saving' bulbs to replace the halogen down lighters in our bathroom.
They were 230 V Mains voltage CFL , Compact Fluorescent Tube, replacements for the old halogen GU10 bulbs we had a few of.
THEY ARE USELESS - Very slow to warm up, Greenish colour light when on, and usually are switched off again before at full power - I should have brought candles.
Can I return them ?, even though these are just the features of the product,
I do still need something to replace the halogens, can't afford to keep running those halogen..

Yes a friend of mine at the school said she had LED's and that was the way to go.
But like everything, when you google them all sorts of things turn, up I don't really know what I'm looking at, where did you get yours ?

Ah thankyou, I think I've found them, I'll give them a phone tomorrow, It is these ones right ? Finbright

Thank you sparky, I ordered a few of those Bulbs you reconmended the other day, from Finbright, they were very helpful.... I wasn't sure on what connection I needed, but they sorted that out . ... I've got them, other half put them in last night and they are very bright, with none of the issues we had with the old ones.
Thanks again,Sal x