My house was built in mid'-late '50, then it's quite old in comparison to today's standard, ... not only 'electrical wiring,' but also 'all other stuff.'
However, my husband and I went to 'upgrade' most of lighting-fixtures all rooms in my house, including 'car-port' and 'outside' lighing-fixtures. Then, we encountered this, ... 90 - 85 degrees 'WARNING,' on their packages. Afterwards, I went to the store where I boughut all of lighting-fixtures(priced around $250.00 in all). The sales person told me that we CAN do that, ... as long as we put the same wattages which is from 65 - 150 watts. He just dismissed 'Warning' signs as saying it's for the sake of 'sue/lawyer' advantage, ... 'Money.'
So, we did it, as believing the sales person's quote. However, for precautious measures, we put 'Energy-Saver'/fluorences-type'/expensive,' all of those 'new' lighting fixutes. We NEVER put 'classis/old-standard light-bulbs, just in case.
The bottom line is, ... if there is such a 'BIG' risk, like 'fire' hazzards or life-threat due to 'wiring,' ... then why the heck many of those 'lighting-fixtures' on the shelves at major home-improving stores??? There are a ton of lighting-fixures at'Home-Depot,' 'Lowe's,' and other 'big to small lighting stores' in my town. Thre is NO warning sign at any of stores, ...'Do NOT purchase 'new' lighting-fixutres *if* houses were built before '85 or before.' Shoud give the warning, ... *ONLY* houses build 'after' 1985. However, I don't see it at any of 'major' stores.
If nobody buying 'new' lighting-fixtures because of 'wiring' stuff, there are MANY, MANY 'returns,' then those 'manufacturing companies' must be stop making lighting-fixutres altogether?