Everything OK. Thank you!
Of the ten that I ordered, one of them has a short and is useless. The remaining nine work as expected. Frustrated about the one because if it had been tested for five seconds it would have been obvious that it is faulty because the LED quickly grows dark and the board gets hot. Fortunately these are inexpensive and I'm not too upset about it. I am glad that they did not come with the pin headers soldered, and aside from the one they seem well made.