Airwalker16
Well-Known Member
I thought he said 7X5 my bad. But regardless, 4 of those 260's is MORE than enough.1,040watts is Shit load
HLG 260, how many for a 7x6 room?
- Thread starter ShayoRouge
- Start date
They do 4x2=8sqft each. You have 7x6=42sqft. So you need 5.25 of these to make it work. 5 might work but is a little low like 28.5w/sqft, also figuring out how to orient them might be hard.
Maybe something like?
If you're buying 5 the kingbright china sets would save you a lot of money
Maybe something like?
If you're buying 5 the kingbright china sets would save you a lot of money
fragileassassin
Well-Known Member
im running 16x 304 boards at 1280w total over a 6x8 space. Its plenty.
I used the same setup over the whole 10x10 tent twice and it wasnt quite enough, but I still pulled pounds of great bud each time.
I used the same setup over the whole 10x10 tent twice and it wasnt quite enough, but I still pulled pounds of great bud each time.
Watts are a measurement of consumption, not output. If that's what you mean by "watts don't matter". It is the output of usable energy that's important, whether it's generated by 500w, 1000w, or 2000w. PAR, yes. Maybe watch a few vids on PPF, PPFD, PAR, etc.
They aren't making "false claims". The wattage they list is the actual wattage of the fixture (driver); the wattage +/- a small percentage for the efficiency and other variables.
You're right to be hesitant, there's still quite a bit of bullshit, and there always will be too. Just try and get a grasp on the basics of plant lighting (what they use) and you should be good
People here will help you out.Three 260 kits is three 240h drivers. If A-type, they output about 5% more than rated, and either way, they pull a little more power than just the driver rating. So, for example 3 x 240w = 720w total (probably closer to 750w)
A wattage recommendation, such as for a given area or footprint is only good for a specific light ("technology"; more specifically, bulb, diode, etc.) 30-35w per sq/ft is the common suggestion for HLG qbs (or perhaps for the samsung diodes they use). This is because the math has been done to calculate how many watts (of that particular lighting technology) are require to provide a certain level of PAR output (in PPFD).
So when someone says "you need 'x' amount of watts in 'y' footprint/area", it's because (it should be because) that amount of suggested wattage will provide 'z' (adequate) amount of light energy to the plant (say 700-800 par, depending on spacing and height of course).
You have a 6x7 area, which is 42sq/ft. 42sq/ft x 30w (per sq/ft) = 1260w
The 30-35w per sq/ft recommendation is for flower, with the boards in question.
As always, correct me if I messed up somewhere.
Hope that helps.
coreywebster
Well-Known Member
Right i looked on diyleduk site now its back up and running, unfortunately he doesn't have the twin heatsinks available anymore which is a damn shame because they were the bargain of the decade.
I think you should consider the fact you have a 7x6 room and will need to be able to move in there, attend plants, mix nutrients and chop at harvest time, as well as be able to open the door without smashing your plants in.
Considering that I would work with 4x7 or 5x5 depending on the location of the door.
That's going to cut your lighting needs down and you can grow a lot of weed in that space.
I think you should consider the fact you have a 7x6 room and will need to be able to move in there, attend plants, mix nutrients and chop at harvest time, as well as be able to open the door without smashing your plants in.
Considering that I would work with 4x7 or 5x5 depending on the location of the door.
That's going to cut your lighting needs down and you can grow a lot of weed in that space.
Great advice.
Rocket Soul
Well-Known Member
Op: Id go for 6 240 kits: they dont throw that well to the edges of a 4x2, id expect them to do fine for a 3x2.5' so 3 rows of 2 each should be great. If you cant manage that, just get 4 and see how far they will go.