20x20 room lighting ideas

Jimmy Verde said:

Got a 20 by 20 foot room 8 foot ceilings any ideas on lights looking for best bang for my buck diy cobs, name brand leds, etc shoot some opinions at me

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freemanjack said:

For that space with that sorta ceiling height I'd go vero 29's all the way, you will have so many point sources of light to cover that sorta space you are gonna need to bring out the big guns; gen 7 vero 29se's @ 72v which other than a few of the QB's will give your best lum/buck currently.

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freemanjack said:

For that space with that sorta ceiling height I'd go vero 29's all the way, you will have so many point sources of light to cover that sorta space you are gonna need to bring out the big guns; gen 7 vero 29se's @ 72v which other than a few of the QB's will give your best lum/buck currently.

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CobKits said:

theres no particular size or mfr of cob that will make any sort of noticible difference in growth if you are using the same spectrums and applying the same PPFD uniformly to the canopy.

the "big guns" really dont do anything for a room that smaller cobs wont

as far as cobs, straight lumen/$ on a bare chip basis is not the same as installed cost, it has to do with how you are cooling, how hard you are runningthe chips, number of chips/heatsinks/holders

in the usual 50-75W per cob range we like to run, the best bang for the buck is something like

luminus cxm22
citi1212
vero B
vero C/citi 1825 gen 6
.
.
.
everything else

note those arent ranked in order of brightness or output, just on lumen/$ at a given efficacy

youd need to use more citi1212s than luminus cxm22 for example.

if you are looking at lowest price of installed lumens/$ you will be running chips to their absolute limit which isnt very efficient and will cost you more in electricity over the life of the chips. You can run a $50 citi 3618 on a $150 driver at over 400W and get 50000 lumens but you are down to 120 lm/W at that point and right back at HPS cost and efficiency levels

Click to expand...

CobKits said:

theres no particular size or mfr of cob that will make any sort of noticeable difference in growth if you are using the same spectrums and applying the same PPFD uniformly to the canopy.

the "big guns" really dont do anything for a room that smaller cobs wont

as far as cobs, straight lumen/$ on a bare chip basis is not the same as installed cost, it has to do with how you are cooling, how hard you are running the chips, number of chips/heatsinks/holders

in the usual 50-75W per cob range we like to run, the best bang for the buck is something like

luminus cxm22
citi1212
vero B
vero C/citi 1825 gen 6
.
.
.
everything else

note those arent ranked in order of brightness or output, just on lumen/$ at a given efficacy

youd need to use more citi1212s than luminus cxm22 for example.

if you are looking at lowest price of installed lumens/$ you will be running chips to their absolute limit which isnt very efficient and will cost you more in electricity over the life of the chips. You can run a $50 citi 3618 on a $150 driver at over 400W and get 50000 lumens but you are down to 120 lm/W at that point and right back at HPS cost and efficiency levels

Click to expand...

Jimmy Verde said:

So vero 29 gen 7s.... no need for em?

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CobKits said:

theres no particular size or mfr of cob that will make any sort of noticeable difference in growth if you are using the same spectrums and applying the same PPFD uniformly to the canopy.

Click to expand...