Blender light units


In Blender 2.8 we have fixed units that allow users to define units for rotation, length, mass and time. But what about lights? Eevee’s “energy” and Cycles’s “strength” are still unclear and confusing Blender units.

It’s really difficult to convert real world units from other software (e.g. watts in three.js) to something vague like “strength” in Blender.


Exactly. I’ve reported this fairly recently. Have a look at this.

I don’t believe we have a unit type for light in Blender. We neither have a unit for strength (Watts etc) nor color temperature (Kelvin etc).

It would be great benefit if we could add this, though.