Hey DGC. I have a 6’x6′ room that I’m currently running a 4’x4′ flower footprint in. I am running a hand-me-down 750 gavita DE and I would like to switch to LED for efficiency and for less heat, it’s starting to warm up and would like to run the A/C less. Also my ceiling is a little shorter and was hoping to run the LED’s closer. I run the 750 about 36″ above canopy. I was looking at the HLG’s and think the 550 might be too much and maybe 300L rspec might be too little. Any thoughts/advice would be greatly appreciated. Thanks to the whole crew for the help.