Louvered step lights are common but all that I've seen are decorative and not functional vents.
I'd like to install actual louvered registers on the side wall of my stairs and install low voltage lights in them so that my stairs are lit while at the same time allowing ventilation for the storage closet under my stairs.
Is this allowed? I know I can't have lighting inside HVAC but I'm not sure if this applies because I don't know if louvered openings between rooms (no forced air) constitutes HVAC.