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Hi, I have a patio just outside my back door that consists of 80 3ft x 2ft x 2inch grey paving slabs. These old 3ft x 2ft x 2inch grey paving slabs are no longer available. A number were cracked and have been lifted and replaced with the modern version which is a 900mm x 600mm grey...

JohnW2 :) We covered e-m interference .. what about on mains circuit electrical noise, and if so are there circuit damping options? :)

Hi JohnW2 Yes e-m interference. Seems possible. Hallway cupboard does have e-m associated equipment in it and electronics that could potentially generate e-m frequencies. May wrap upper part of PIR in Al kitchen foil as an e-m shield, though triggering is likely from lower part? - which...

Hi, I am fitting some new LED spots. The new LED spot is smaller than the roughed out hole made for the previous light fitting. I've got a few of these where the hole is too big. What's the best and easiest way to make this hole smaller (for the new fitting) so I have a nice...