Max Facts Did you know?…. BTU load reduction from LED lighting is just as important in summer as reducing lighting itself. It also reduces the load on your air conditioner Summer time includes a lot of holidays. Make sure your EMS is set up for your holiday schedule so you are not running your system over Memorial Day, 4th of July and Labor Day. The most important part when preparing for your build-out is having finished selections picked out prior to the start of construction. Leaving selections until later tends to cause subtrade overlap and delays.