[R_Edward]

Now that dimmable 60-watt equivalent LED bulbs have dropped into the sub-sawbuck range, I was examining the packaging at my local Home Despot store. I remarked to the salesman who asked to help me how the iconography on the front of the package suggests that the bulb is suitable for use in your standard ceiling-mounted light fixture--which is usually enclosed--but the fine print on the back explicitly states that the bulb is not intended for use in enclosed fixtures. He agreed that the ceiling fixture icon was misleading, and that the fine print is what I must consider most authoritative.

He did note that the Cree brand bulbs are actually rated for use in enclosed fixtures, but alas, they're also more expensive at the moment than these other guys.