that's a very long feed to sim through, yet I understand the US appliances you probably meant are those used for skin and organs, rather than bones, which require a different setup and usually much more expensive appliances, at least to justify buying and using them in your own home
Discussion
Yup, I got a US-1000 from Tenspros and it cost like $50. Really inexpensive and does exactly what's needed.
A good red light (I got an Ironforge from Chroma) will do deep penetration.
I was once in the market for a red light to keep it on my desk while internetting, then I decided I'd just stay in the sun whenever I could and save the money to buy btc in order to thereafter be able to accidentally lose it
It's the better option where possible, and completely free too.