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Re: [EnergyPlus_Support] daylight
Although the language implies as much, in this point I don't think it differs from the normal daylighting calc. Although there are differences in how effectively lighting types make light flux at certain input wattages, "dimming" assumes a linear power to flux reduction which may be more similar to switching off groups of lights. The aspect of the light emmiter becomming less efficient at lower dim settings is not yet part of energyplus. Furthermore, modern dim controls+lights are "electronic" and not "resistive" as in the past. Basically the drop in efficiency may be negligable. Otherthan this, I guess you could account for the "losses" by defining other OtherEquipment objects and driving them with an EMS program. What does the manufacturer data say for the lighting you are trying to model?