DL3???

I would say that this is uncommon for these fixtures in my experience.

Look to see what else is on your electrical service.....particularly anything with a large electric motor (HVAC units, refrigeration, laundry, etc, etc....) as these require an in-rush of power whenever they startup....also if you have long cable runs in addition to this you might have all sorts of power issues.

Do you use power conditioners at each fixture?

Hope this helps. :)

I would say that this is uncommon for these fixtures in my experience.

Look to see what else is on your electrical service.....particularly anything with a large electric motor (HVAC units, refrigeration, laundry, etc, etc....) as these require an in-rush of power whenever they startup....also if you have long cable runs in addition to this you might have all sorts of power issues.

Do you use power conditioners at each fixture?

Hope this helps. :)