Well, on my U9BL Armor Xboard they had no problem getting shown right through, even on the lowest setting. On the race, on all the way low they are dim, but still lit up. In the pic, it's second lowest setting. They are pretty thin, but don't mistake that for weak. Oh, and when the LED settings are all the way up it's kind of wild how bright they get compared to the other keys on the board, but I would never have it lit that much, this race board gets BRIGHT.