greenfrank
Member
Hi, I have a DIY grow room 3,94 x 5,25 h.6,56.
I have read several posts here but I haven't really understoood how many watt I need to my grow space and how calculate that. I know that I need 850-1100 ppfd for.
At the moment I use a 600w Hps with good results (0,7 gr/w) in cocco but I want improve them.
My idea is to buy 2 MW HLG-240H-C1400 and 10 cxb3590 cd bin 36v.
Some questions:
1. How to calculate ppf and ppfd
2. How to calculate the efficency
3. Why on http://pct.cree.com/dt/index.html there is no data for cxb3590 cd bin 36v under 1400ma ?
![upload_2016-10-11_21-40-50.png](/data/attachments/2902/2902201-1fc92abb3be7ac09330622306e3f9300.jpg)
Thanks in advance
I have read several posts here but I haven't really understoood how many watt I need to my grow space and how calculate that. I know that I need 850-1100 ppfd for.
At the moment I use a 600w Hps with good results (0,7 gr/w) in cocco but I want improve them.
My idea is to buy 2 MW HLG-240H-C1400 and 10 cxb3590 cd bin 36v.
Some questions:
1. How to calculate ppf and ppfd
2. How to calculate the efficency
3. Why on http://pct.cree.com/dt/index.html there is no data for cxb3590 cd bin 36v under 1400ma ?
![upload_2016-10-11_21-40-50.png](/data/attachments/2902/2902201-1fc92abb3be7ac09330622306e3f9300.jpg)
Thanks in advance