"Needed a replacement light for a friend's bathroom. Picked up a couple of similar fittings at Screwfix Live then realised that the cut-out size was too big. These fittings are complete with lamp, rubber suction pad to remove lamp, and even a spare retaining ring. Can only judge performance, etc on what I believe to be true as I have yet to fit them but this appears to be a complete package of everything required, with connection being provided through the round (? 5amp) box - simplicity itself. Also, local branch of Screwfix (Salisbury (Paul)) were most helpful swapping the wrong ones for these (believed to be the last two in the clearance sale)."