Ones that are marketed as replacements for ordinary white-light bulbs get labeled today. I don’t know what legal requirements are. But I’ve seen them in places like Home Depot. I tried one once for a floodlight and was underwhelmed. It was stark and harsh and eye fatiguing. I switched to one that had a curly-bulb in a floodlamp envelope and was happier.
It doesn't cast a light that lights the whole room, but it's cheap on current.
I also picked up a few 13 watt CFLs (claim to be 60W equivalents). They draw a lot more current from the 12v, but they do light up the room a lot more in a pinch.
-PJ