All 7 floodlights survived the night, but they do get quite toasty after an hour of continuous use (even while out in the cool night air). I actually like the effect of the cool white tint when my back yard is well illuminated. If they start burning out, I’ll consider a change but will keep what I have for now.
@Werner - The housing already gets very warm when the LED is continuously driven at 10 watts. Heat is an emitters worst enemy, especially when kept on for sustained periods of time. I have less than 20 hours of use on a brand new XML that has dimmed by at least 2/3rds because my lamp conversion needs additional heat sinking to properly cool the emitter.