I've bought bulbs from this lot before now -
http://www.lumin8.co.uk/
My landlord won't do an electrical test despite being told to do so by an electrician who told me that there were a "number of points of concern". He was fitting a new consumer unit and cooker point and wasn't happy with the lack of ring mains and general wiring arrangements. Basically the wiring is ancient and the landlord knows it but knowing something and having a bit of paper saying you know something are two very different things, especially when it comes to fire investigation