On Tue, 30 Jul 2013 12:54:05 +0100, "Brian Gaff"
wrote:

I wonder why they don't make such things of a durable plastic?

Not LEDs but that's why I bought these:
http://www.tlc-direct.co.uk/Main_Ind...hts_Smartflood

The components clip together and the final fixing screws are recessed.
I'd previously used B&Q quartz halogen floods that had to be replaced
when the lamp went because the screw had rusted. Mind you they only
cost £10.