Help setting up without a par meter

i keep tweaking my lights trying to see where my plants look stressed but seem to just not like light.
I have
9 cxb3590s 3k 90cri on 3 120 1400 drivers
4 304 35k Samsung boards on a 185 1400

What power should I put through the boards and what should I put through the cobs? For flowering at the moment

for equal efficiency, the boards should be run at about 150W to get the same efficiency as 3 CXBs at 50W ea

how big is the space?

35-40w per sft. for flowering, a quarter or half of that in veg.
So 10-15w per sft. in early veg, up to 30w/sft. for bigger plants...

CobKits said:

for equal efficiency, the boards should be run at about 150W to get the same efficiency as 3 CXBs at 50W ea

how big is the space?

Click to expand...

It's in a 4x4 tent. So 1 board at 150w to equal the efficiency of 3 cobs. How about all 4 boards? They are on one driver parallel.
And @Randomblame thats a fair bit isn't?

Currently on 500w at 20inchs and leaves are serrating like a gooden. Yet this low on the w/sqft

I thought it was just my autos that don't like my light but the photos are doing the same

31 W/SF really isnt that low for cobs, esp when run soft-ish like yours

leafs shouldnt be damaged tho. whats your temps and humidity like

if you try to run both the cobs and QBs in there you'll be running them all so soft that 35 W/SF will seem like a lot. 40W/SF run that soft would be a lot lot imo (i mean pull it off if you can but youre seeing stress at lower light so i dont advise it)

id split the QBS out to another 4x4 and run both at 600W

CobKits said:

31 W/SF really isnt that low for cobs, esp when run soft-ish like yours

leafs shouldnt be damaged tho. whats your temps and humidity like

if you try to run both the cobs and QBs in there you'll be running them all so soft that 35 W/SF will seem like a lot. 40W/SF run that soft would be a lot lot imo (i mean pull it off if you can but youre seeing stress at lower light so i dont advise it)

id split the QBS out to another 4x4 and run both at 600W

Click to expand...

I'm only allowed one tent that's my biggest bummer.
Also only have slate 1 heatsinks and a 185 1400 driver for the boards.
Temperature is 25-26 lights on 21-22 lights off humidity around 50-60%

Tallest branch has stretched up to around 18 inches from the light.

I'm running 31w/sqft and seeing problems.
The cobs alone were maxed at about 490w ish. So I thought to add the boards and raise the efficiency by turning down the cobs. But not sure it's going to plan

astonehead said:

I'm only allowed one tent that's my biggest bummer.

Click to expand...

put your light as high as it will go and crank it up. grow trees, defoliate, keep them 24" from light and grow a sea of colas

astonehead said:

So I thought to add the boards and raise the efficiency by turning down the cobs. But not sure it's going to plan

Click to expand...

plants dont care about efficiecncy. morre light is more light

any sort of cheap $30 lux meter is better than nothing

I have a lux meter!
You say 24" fully cranked up?

that was just a suggestion of one way to maximize yield per space. there are many many factors and every grow is different

CobKits said:

that was just a suggestion of one way to maximize yield per space. there are many many factors and every grow is different

Click to expand...

Thanks. Think it just raise it up as it is and see if that helps, just can't afford too many airey buds