What you want is at odds with energy efficiency and is therefore being made illegal https://blog.medcram.com/uncategorized/new-department-of-ene...
Again, another regulatory decision that makes a niche worse off overall....
Abuses of a carve-out aside, having a "Sunlight mimicking" exemption would solve this, with the added conditions that they have to actually stick to the EMF outputs of the sun to get this approval. The article itself does this with “General Wellness Lamps”.
Otherwise, the only non-reg way to solve this would be to find infrared & red LEDs and make the supplementary light sources yourself.
I mean, wouldn't an IR carbon filament heater suffice? Probably a bit longer wavelengths, but you can still see it glow, so you're getting at least a bit close to the visible spectrum