I have another pet peeve that I forgot to mention before... Badly designed and/or maintained HID floodlighting, especially when it is in a hazardous environment.
Like the case of an indoor swimming pool that I go to quite often. The deep end is lit from above with 8 HPS floodlights - but over the last year 7 of them have died completely and as of last week the one light that still 'works' has started cycling! .... When it goes out all that's left to illuminate that area are the MV underwater lights, but - not surprisingly - most of these are glowing a dim sicky colour as they haven't been replaced for years
Also, due to the way the building is wired, when any big electrical load switches on it knocks out a lot of the HPS lights around the other side of the pool - which leaves the entire space extremely dim (not much daylight comes in due to the windows being covered with insulation) while these lamps cool down before re-striking!
As you can imagine that place is VERY creepy at night.... I would really like to get a picture of it but cameras are forbidden there, I wonder why.
This must be seriously unsafe as how are the lifeguards supposed to spot anyone in trouble if the lighting is so dingy ?