Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
This is a common misconception. The way EnergyPlus works is that you input a Lights object (documentation), and specify which zone it serves, its lighting power and fractional schedule, and how the heat is distributed.
EnergyPlus doesn't care whether your Lightsobjects are enough to provide enough lighting to your zone.
If you put a daylighting control in the zone, EnergyPlus just assume that whatever lighting power your specified will provide the illumance setpoint you have specified when your fractional schedule is 1 and its nighttime.
In your case, whether you have a LED or a fluorescent fixture, you'll just have less Watts for the lights object, and you could tweak the fraction radiant and fraction visible.
