Nearly all electrical power consumed by indoor lighting eventually becomes heat inside the facility. A 500W fixture therefore contributes roughly 500W of heat load to the space, even though LEDs are more efficient at creating photons than older lamps.
Replacing 1000W HPS with 600W LED reduces heat, but hundreds of LED fixtures still create a large continuous load. Drivers mounted outside the room can shift some heat but not eliminate it.
More light can increase plant transpiration, adding latent load to dehumidification. HVAC sizing should account for lighting watts, crop water release, people, pumps and outdoor conditions.
For “How Do LED Grow Lights Affect HVAC Load?,” these three models give you concrete products to compare against the requirements above, instead of leaving the answer at theory.
Our strongest starting point because its high-output full-spectrum led / dimmable format makes it relevant when translating the lighting metric above into a real fixture choice.
A useful second comparison because its bar-style led / dimmable high-output fixture format makes it relevant when translating the lighting metric above into a real fixture choice.
A contrasting third option because its multi-bar led / dimmable format makes it relevant when translating the lighting metric above into a real fixture choice.