Reply To: Lighting Source for MOCs Home › Forums › All Things LEGO! › Lighting Source for MOCs › Reply To: Lighting Source for MOCs October 1, 2013 at 1:33 pm #3497 TimModerator Rich Millich wrote: How long did you leave those lights on for? I only ran them for about five minutes. Before I buy any more, I plan to run them for a few hours to make sure they do not heat up. I’ll probably run that test this weekend.