Actual Power Usage Readings of Dimmable Lumatek 1000 and Galaxy 1000 Ballasts

I have a Killawatt wattage recorder and decided to test the actual power usage of my new Lumatek 1000 HPS/MH dimmable ballast at it's different power settings. Previously, the only info I could find was that even though there are lower settings than 1000 (600 and 750) they used the same amount of power as the 1000. This I found to be completely FALSE. The setting of 600 used only 663 watts and the 750 setting used only 825 watts. This makes it a truly useful ballast for scaling down usage on days my grow room gets too hot to support the highest setting. I then checked the 1000 watt setting which used 1055 watts which is lower than the Galaxy that tested at 1080 watts. Another big surprise was the 110% reading required only 1090 watts, about the same as the Galaxy. With that low of a reading I doubt it gets brighter than the Galaxy even at it's highest setting.

I still have the Galaxy 1000 so I might go and get a light meter (cheap one but good for comparison) and test both the Lumatek and Galaxy and report back here what the light readings are for each setting as well.

I have a meter and two 600w Quantum Dimmable. I've had similar results, 50% power is approx 310w, 100% is 630w. I suspect that this is somewhat bulb-dependent, but both of my bulbs ( of different brands ) show about the same power consumption. Light output on partial power is still very high, at least to the naked eye, I'd be interested to hear what you find with a light meter.