Not a question just gonna do a comparison of them all.Been wanting to do this for a while.I built a new building and the Flower room is complete so I'm getting everything set up.Running all clones.Ill mix up the clones under each light setup to see the differences if any and the lights im using is as close as i can get it for wattage.The HPS are 1000 Watt single ended which is probably close to a 750 to 800 DE so they will be 1000W The CMH will be 630 watts,2 315'sand the LED is 750 watts of COBS.15 cobs total. Each will be setup over a 4x5 in DWC so no mix ups in nutrients or lockouts.The lights will be the only factor that separates them.Gonna do a 5 week VEG and than flip.ill be running CO2 also. One of the hoods im gonna run a Metal Halide 5000K 1000W bulb and the other 1000W HPS bulb.Just to see if running an HPS from the beginning or the HID will make any difference.After I switch to flower ill put the HPS in the hood and run both HPS from there out. I know the wattages are not all identical but feel they are pretty close comparisons for what people prefer for 1000W equivalent setups. I can already tell you this much.The 500 watts of COB Led is the brightest shit over the totes right now. Another thing i have a LUX meter app and the 600W MH is getting owned by the 315 CMH. i can put the meter under the MH and get readings from 25,000 to 42,000 Under the CMH with half the wattages im getting from 26,000 to 60,000.I always try and get over 28,000 to 45,000 for these size plants and on through the grow seems to be the sweet spot. So without further due ill get this thing started.Ill keep it updated and post final weight results and grams per watts ETC .