Trevor Smith wrote:
Today I recieved my British Gas electricity monitor and I have noticed
that when I turn on the kitchen lights that are two 58 watt T8 tubes
running on two conventional ballast gear trays the wattage on the
monitor shows a draw of 160 watts which means that if the tube draws 58w
then the ballast is drawing 22watts, would this be correct?.

Trevor Smith
Just be aware that any device that only measures current cannot be an
accurate watt-meter.

A