Northern Light auto royal queen seeds

That would depend on how much you yield under 600 watts HPS, usually most people get between 50% to 80% efficiency (300 grams to 500 grams) and some highly skilled growers get to 600 grams, so the usual range of yield is 0,5 to 0,8 gpw and some up to 1 gpw. For LED’s it’s easier to be closer to 1 gpw, most grows I’ve seen, get between 0,8 to 1 gpw, some even going up to 1.2 gpw, mostly because they put out lower heat and so it’s easier to get the plants closer to the light. With 370 watts of LED you should be able to get 300 grams easily and up to 370 grams. If you are achieving close to that with HPS, you most likely will get similar results (similar yield in grams, different efficiency in terms of gpw), but If you are getting over that with HPS, you will not get the same with a lower power LED. Light types and wattage only gives you a possible yield, the rest is up to your skill in plant training, transplanting, watering and how full and flat you can get your canopy. Sorry if I can’t give you the answer you are looking for.

My opinion is maybe this strain don't like too warm climat ? After 12weeks you are supposed to be ready for harvest.. The problem wkth autos is that they are running the clock, if you had problems with high temps, they got lower growth for some days or week, and they 'll never be able to catch back the train... So i think it' s time to watch carrefully hiw your trichomes are, and don't worry, you will have a nice thing to smoke ! Always hard in spring/summer to manage temps, give another tryto this strain in fall/winter, i'm pretty sure you'll do a better yeld ! Happy growing