“And there were many lights in the upper chamber, where they were gathered together.”
King James Version (KJV)
20:8 There were many lamps in the room where they were assembled - To prevent any possible scandal.
Ac 20:8 There were many lights. This is mentioned to show how they could meet at night. In those time public meetings and even the games of the theater were by daylight. Means of lighting were very imperfect.