You are correct. And as a journeyman electrician for approx. 15 years, I am impressed. I agree. I use some nice $35 cfl's inside my trusty, ol' phototron for my clone/veg chamber and it does very well to keep my cuttings and sometimes new seedlings growing nicely until they get ready to be transplanted into the much larger, 5-gallon buckets over resovoirs in my main grow closet, but i do use top of the line lamps in my magnetic type ballasted hid lights. I am very interested in the new 1000W dual-spectrum lamps I see in H.T. that have a 400W MH and a 600W HPS all inside of the same lamp, which looks to be of the same size and basic shape of your norml 1K HPS lamps. I believe it is set up to withstand the acoustic resonance of the much higher frequency, I think around 20,000 Hz, of the newer digital ballasts, so one or two of those kits will most likely be my next lighting purchase. I have used just MH before, and the potency of what was, I believe, some feminized Lemon Skunk seeds a friend had ordered, was just not there. They looked, smelled, and tasted wonderfully, but that thc and resin production was just absent, so, it was a huge dissappointment. But it was one of those mistakes many "budding" growers have to make before they learn what is best for the plants, and why we give them what we give them, and when, and etc, and etc... But my next grow afer that one incl the 400W Mh and two 150W HPS, and things got better, and then I finally got some "extra" 250W HPS kits and lamps from a job I did, and they have been a staple along with my trusty 400W MH ever since, and the results have been mind-blowing. The proportion of 750W of spread out HPS red/yellow spectrum along with the blinding 400W white/blue MH spectrum works like magic in my closet. So, we will soon see how well it does with Grandaddy Purple, Purple Kush, and a few ind/sat hybrids I have this time around. Pics will be posted soon.