hlg-185h-c1400a x4 cob
- Thread starter Volkgz
- Start date
littlejacob
Well-Known Member
Hi! How much does those COB cost? And why 90 CRI? They are only 129 lm/w @1400mA! I guess cxb3590 3500k CD or even DB now would be much better in efficiency and more effective than those and they cost 30$ each or around! So why did you choose the citizen? It is just a question as I wasn't on RIU for the last 2 years so I have to catch things!
I miss Supraspl...where is he?
Have a lifted one
I miss Supraspl...where is he?
Have a lifted one
clu048-1212 3000k cri90 has better spectrum
a good cxb costs and heat twice, i have a tent 60x60 and I'm not interested in producing heat.. it's the main reason why I change to the led..
The clu48 1212 were like $10 last time I checked (about a year ago) they are better running at 1000ma or less for 1400ma up bridgelux would probably be the best option
CobKits
Well-Known Member
because lumens are for humans, plants like PAR, and certain ranges are more absorbable than others, so not allPAR is even the same
lumen is a green-centic measurement and is not very useful when comapring different spectrums
littlejacob
Well-Known Member
Thanks!!!...but I need proof! A grow log would be great...i know lm/w is not the best way to compare light but it help a lot! What I am looking for is gpw (and quality of course but quality is not 100% related to lights) the best light for me is the one who grow the highest gpw!
So which led are growing the highest gpw these days! The highest I ever saw from a reliable source(I can make a grow log and lie about the final weight it is hard to verify but there is reliable people here) was almost 2gpw from cxb3590 3500k CD @700mA!
Same for qb's people want it because of the 220lm/w not par!!! If I was looking for par I would go with chilled boards!
I know lm/w are not everything but the more you have the more weed you harvest(at least in my case!)
Have a lifted one
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