Ive just moved into a newbuild house with canopy porch over the front door and garage. I noticed that there was some rust on the chrome bezzel of the downlights set into the plastic faced ceiling of the canopy.On starting to clean them I found they were standard 230 volt downlights and on checking found them to be off a lighting circuit with a 6 amp MCB on the un protected side of the C.U. Should these lights being outside be at least I.P. rated? I have the electrical installation certificates from the builders contractor but the builder says to fit this sort of light is normal.Advice off you qualified guys would be much appreciated.