When I first intalled it at lunchtime it started about 150 watts then spiked up and down between 150-250 for first few minutes.
All I had on was my SkyHD box and my crt tv on but the usage stabilised about 180.
In the evening I just randomly checked it a hour ago and it was about 790watts!
I assumed it might have been my pc but then as soon as I turned living room lights off it went down to about 550watts and once turned off kitchen lights went down to about 400watts.
Then when PC was turned off it went down to about 200watts finally I turned living room lights back on and it shot back up to 400watts.
I did these tests over like a 30 minute period so gave meter chance to update.
So by these assumptions the kitchen room lights seem to use about 150 watts
But to me 200W for lights seems high!