I have one of these for my ceiling light in my room, much brighter than the 40W clear bulb that was there before, and puts out more even light. I was wondering, though, for those of you with multiple Cree bulbs, if mounting vertical vs horizontal had any effect on heat dissipation. I don’t have any hard data, but the heatsink was hot enough that I couldn’t hold my finger on it for longer than a few seconds.
I have a table lamp that I may experiment with soon. This is my first time using an LED bulb, so this may be normal, but I was concerned that perhaps the bulb was meant to be oriented vertical and not horizontal like it is in my ceiling light. I can see why the glue holding the dome in may fail. (also, they could have done a better job at gluing the domes in, I had to cherry-pick one that didn’t have crooked, uneven glue.
As a random note, the old discontinued remote phosphor philips gray alienhead bulbs were on clearance for ~$22 at my home depot.