I say nay, I had 2 x E5's blue pops 24w, both failed within 8 months of use. Far from the 8 year promise! One day it started smelling like burning electronics and that was the end of them. They were running in an ATI Powermodule 6x24w fixture with fan cooling.
There is a 3 year warranty and they did replaced 1 of the 2- E5's. I'm trying to get the second bulb replaced, however they are not responding to emails / radio silence. The customer service is very lacking and requires you to chase them down to get any information. Sad, they are expensive and I had high hopes for these. Going back to ATI T5's! lesson learned.