Ok
Thanks for all the input .
Like I said , I have put a few in , but in bathrooms . Consequently , limited use . That would explain why I haven't heard any problems . In the future , it sounds like I would be ok to install them when requested , and just qualify that the bulbs could have shortened life spans . Wouldn't the ballasts get just as hot inside a normal light fixture though. Also why would they make a par30 bulb if you can't put it in a can ?