all the different watt types of bulbs under the same exact conditions.

For example, using a 4 x 4 x 7 grow area with exhaust and cooling fans all running at the same speed.

First use a 250 watt hps, then a 400, a 600 and a 1000. Each room gets at least 30 minutes for the test run. Temps are taken at the end of 30 minutes.

I assume you would get a decent value for the difference between each bulb. I was just wondering what that difference would be.

So if I started with the 1000 and my temps were 83 and worked my way downwards in watt size to a 600 and so on. I wonder how many degree difference it would make with each

Has anyone ever done this or seen an article on it?

This must be a tough one. No data on this at all?