130W AC-Adapter replacement

Apologies if this has been disussed elsewhere. I've searched and found nothing previously.

 

I would like to know if there is a more compact/slim version AC adapter that I could replace the original PA-13 (PA-1131-0202) with, for Dell Precision Workstation M90. I find it is very bulky when mobile and am looking for a smaller version for this reason.

 

Thanks in advance.

Graham

 

[edited: looking for a UK voltage adapter.]