Light power and 80x80 tent

First, mars has accurate spec sheets for several years now, so it's fairly safe to use their numbers without concern. They don't overprimise, which instills more confidence. This is a huge compliment to them as a company compared to a lot of their competition that blatantly misuse technical vocabulary and sometimes outright lie on their spec sheets. I've said it before... good job Mars. It's not something that is easily recognized and deserves recognition. (i receive no money or benefits from mars) That light puts out 345 umol/s PAR give or take and you have a .64m^2 space (.8m x .8m) 345umol/s / .64m^2 = 540 PPFD. This is 23.8 DLI over 12 hours/day and 35.6 DLI over 18 hours/daay Short and sweet - Over 12 hours, this is near the bottom of what you want for photoperiods, and 540ppfd over 18-20 hours is near upper range of DLI for autoflower / vegetative phase if you intend to fill entire area of tent with plants -refer to a daily light integral (DLI) table with PPFD and hours of operaition to reference your DLI. The math is easy but a table is even easier. The gist of it is all you need. The wiki page can sum DLI up more eloquently than i can. Details, if you wish... 550 over 12 hours is 23.8 DLI. This will produce dcent buds according to information onthe web. For a point of reference, the ceiling for ambient co2 is around 35-40 DLI and yield definitely will increase a good chunk as well as denser buds lower on the plant comparitively speaking. You want closer to What would be an upper range target for 12 hours? -- 800-900 PPFD or a light with 800 (to 900) * .64 = 510umol/s to 576 umol/s output to cover that entire tent on a photoperiod flower phase 12 hour of light per day. Call it 550 umol/s and as long as it's in that ballpark it's golden to maximize ambient CO2 in .64m^2 and 12 hours/day of operation. Over 18 hours, this is 35.6DLI and is well-matched for your tent. Autoflowers would probably be your best bet if you plant to fill the entire tent. could even add 1-2 more hours of operation and test upper boundaries of DLI. Two more hours would be 39.6 DLI - likely need less but can always try and back off to test boundaries. The actual ceiling floats around relative to temp, rh and atmospheric co2, but should be relatively consistent at least per season. Other options for a slightly weak light if going with photoperiods: Using a smaller space and getting the light closer for that smaller footprint would improve any 12/12 operation -- also, another 8% DLI by going with a 13on/11off schedule. changing any 1 factor - area, ppfd, hours of operation - will 1:1 direclty impact DLI... common sense applied.. i.e. area is inversely proportional, so a smaller area equates to a 1:1 proportionally larger DLI if the other 2 factors remain the same. equipment takes up some space, so no need for good light to hit it, though some will. a note bout the math abaove.. it's essentially calculating DLI at the diode, which is a slight over estimate, but will mostly be apples to apples with typical hanging distances that don't have a major hotspot directly under the light. That's already worked into the suggestions above. for this sort of thing i try to err on high side, but it won't by more than 10% off in most contexts. This calculation is just a tool. it is not "the" answer. It will get you closer to where you want with less trial and error to get there. You still have to observe and react to the plant. It dictates all.

In vegging it will work,but for flowering you are very under powered for that many plants.

That size tent is recommended to use anywhere from 150-300 watts of power. Looks like your light is 150 watts and has a 60x60 flower and 80x80 veg so you are ok. My guess is you will be running at 100% during flower. You can download a PPFD app and test your light. 350-450 PPFD for veg and 650-900 for flower. Hope this helps.

Hi, TS1000 has 60x60 flowering cover and 80x80 veg, so you should be fine :)