I just use them in work lights that see occasional use and one motion sensing light.
I switched the tubes out for the lowest wattage available in that size.
You don't have to wait long to switch tubes.
When you buy a light the OEM likes to install the highest wattage tubes and it seems like the end crumbles from the excess heat.
Also if you have one of the 500 watt halogen lights near you and its not 10'F out it will cook you.
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