8ft LED bulbs source?

[hermetic]

I am going to do this, and I still think the eight foots are expensive!! What I intend to do is use four foot single end feed tubes, and put either two or four per fitting, depending if they are singles or twins. This will mean a centre clip to support the ends of the tubes, but as I have also heard about the cheaper eight footers losing leds quite quickly, I think this is the way to go!
Phil
Far East Yorkshire