Word for Wednesday

Acts 20:7-8

7 Now on the first day of the week, when the disciples came together to break bread, Paul, ready to depart the next day, spoke to them and continued his message until midnight.
8 There were many lamps in the upper room where they were gathered together.

Now, did you ever wonder why it says there were many lamps in the upper room? Yeah, me too. But some time ago, my dad brought up this passage. After he read this verse, he went to Acts 2:2-3

2 And suddenly there came a sound from heaven, as of a rushing mighty wind, and it filled the whole house where they were sitting.
3 Then there appeared to them divided tongues, as of fire, and one sat upon each of them.

Now, correct me if I am wrong, but it seems like in some other translation the flames of fire were called lamps.