20x20 room lighting ideas

[Jimmy Verde]

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

 

[freemanjack]

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

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.

 

[Jimmy Verde]

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.

Thanks a ton! On that note....time to get the bug guns out

 

[Jimmy Verde]

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.

Thanks a ton! On that note....time to get the bug guns out

 

[CobKits]

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

 

[Dave455]

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

Great comments !

 

[Jimmy Verde]

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

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

 

[CobKits]

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

as opposed to what? youre going to need some cobs, Veros are a fine choice. Lumping together three very different models with different voltages, cost, and efficiacy doesnt help the discussion for anyone, esp newbies. Grouping very different products under a brand identity is how manufacturers like Optic are advertising "Cree Cobs" in their fixtures but using 3 year old CXA2540s, etc. As i said above:

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 difference between a $35 vero C and a $35 citi 1825 gen 6 and a $17 luminus CXM22 is just a few percent in the 50-75W range we usually use

big cobs have their place (150W and up, high bay/stadium lighting etc). Remember none of these are designed for growing