Recommended suppliers of UVB canopy?

I've suffered with psoriasis for most of my life. Creams and ointments do seem to help but don't actually clear it from my skin. I'm now in a position to afford a UVB canopy. I came across a website treatpsoriasistl01uvblamps.co.uk (MBS - much better skin). They say they have a 5 star rating on amazon but I can't find any listing for them or general reviews on google. Can any one recommend them or failing that, a company that can supply a UVB canopy? I have a budget of £1500.00