wrote in message
...
That tanning bed may be drawing current that is out of phase and you are
getting a current that is not really accurate compaired to the RMS or
average value.

How would 24 100 watt bulbs have any reactive load component that
would change the power factor???

I think you are grasping at straws.

Aren't most tanning beds using the gas tubes that require a ballast of some
sort ?
I doubt they are using common resistive bulbs.