Or you can just buy 490nm LED bulbs, which is the wavelength the photoreceptors in the eye related to circadian rhythms are most sensitive to. Just be aware that they should be off to the sides and ideally indirect, because concentrated blue light is actually hazardous to the eye.
One can also buy a couple of bright, high-CRI LED bulbs for one's existing lights and save themselves about $650, because the difference between those and the studio lights is typically red spectrum coverage, which is not relevant for circadian rhythm / SAD treatment. The film/TV LED lights are also designed to have a really smooth spectrum, minimizing gaps. If you want to do that...fine, but please don't advise people to waste lots of money on something completely unnecessary.
I assure you, a double-height high-CRI LED strip running along the edges of the room will throw a fuckton of light without the issues caused by having two very intense point sources, namely shadows and glare.
There's almost never a problem with too much blue light in the high CRI bulbs (in fact, the people doing the spectrograms are usually looking for bulbs without the high blue spectrum spikes, and many people are looking for bulbs without the blue spikes (and they're hard to find!)