Oh sorry man, I didn’t see your question last week. I used some of the crappiest lights and the Anubias nana still grew. Slowly but they grew. Anubias isn’t a fast growing plant either way but it grew even slower than normal with the lights. I would imagine, don’t take my words as fact though, that they would grow with no light or whatever lighting you get.
If you wish then I can do a litte experiment and put one of my own anubias in a tank with no lighting? There would be natural sunlight though.