So the gotcha with getting too fussy about which color temperature option to go with, is that the standard is D50 (CCT 5003K) for everything ICC. On the other hand, for photographers, it's reasonable to consider where your prints will finally end up. Are they going to be shown in a gallery and then put in someone's home? What about in an office where fluorescent is common?
Galleries use conventional halogen or incandescent bulbs. In NYC galleries I see anywhere from ~2500K to ~3100K. It's all over the place. So if you're in fine art, and looking to target galleries, but you want something more consistent, and closer to that of the spectral quality of D50, the Solux 3500K is a great compromise if you want to be on the warmer end of things, or the 4100K if you want to be on the cooler end of the compromise.
5000K is workable for commercial and advertising work where the press room standard is 5000K, although arguably you could also get away with a fluorescent based D50 simulator since that's what's used in the pressroom also. I'd just be aware that not all ink sets are the same, and the spectral difference between press ink and inkjet ink can still cause metamerism failure when the light source is not the ICC expected D50 - which fluorescent D50 simulators do not do nearly as good of a job at as a Solux 4700K-5000K bulb can.
And yes, unfortunately heat is an issue with near black body radiators, but that's also why their SPD's are so well behaved, compared to fluorescent and LED - all of which are are really big problem when it comes to color rendering, and even just consistency (over time, unit to unit, between supposedly identical model #s, etc. etc.)