Rocket Soul
Well-Known Member
Ohm sweet ohm
Introducing CobKits.com - specializing in DIY and Citizen COBs
The Dawg
Well-Known Member
tstick
Well-Known Member
Just out of curiosity...What does Cree recommend for running their COBs? I know (most) everyone wants to under drive them to get them to be more efficient, but I think I read somewhere that Cree designed their CXB 3590 COBs to be run much, much harder than what we mostly see applied around here. And although they obviously can be used to grow plants, Cree did not specifically designed them for that purpose. So, what did Cree have in mind when they made those COBs? Industrial lighting? Home lighting? And how hard would Cree say to drive them if you asked them?
JorgeGonzales
Well-Known Member
The nominal current in the data sheet would give you a reasonable answer. Also, they don't provide data below 50W.
Applications depend on where you think 50-100W of LED would make sense. Retail, warehouse, industrial, street lamps, probably every place but residential indoor lighting.
CobKits
Well-Known Member
jorge puttin up the resistance
CobKits
Well-Known Member
i dont have a 4000k 72v chip and it would test within margin of error with the other cree at a given wattage anyway
MrTwist1
Well-Known Member
lol sparky's joke
DonBrennon
Well-Known Member
Watts wrong with that?
PhotonFUD
Well-Known Member
Except when he switches his position.
sixstring2112
Well-Known Member
Resistance is futile
The Dawg
Well-Known Member
Big smo
Well-Known Member
Hey cobit I get a little confused with the adjustable voltage drivers. I was looking at 2 of the 120-48a drivers for 8 6500k 1812's
I'd like to dim the cobs too and run 2 drivers so I could power the center 4 cobs when the pots are close together and be able to add the far 4 cobs once they get bigger. Do you think this is the best option? The space is only 4x6 and figured the 1812's driven sort of low would get me the best bang efficiency wise. Any thoughts would be great. Also maybe the 2 outer middle cobs would you recommend doing 5k to break up all the 6500k's thank you in advance
the x's keep getting pushed to the left but they are supposed to be centered
X X
X
X X
X
X X
I'd like to dim the cobs too and run 2 drivers so I could power the center 4 cobs when the pots are close together and be able to add the far 4 cobs once they get bigger. Do you think this is the best option? The space is only 4x6 and figured the 1812's driven sort of low would get me the best bang efficiency wise. Any thoughts would be great. Also maybe the 2 outer middle cobs would you recommend doing 5k to break up all the 6500k's thank you in advance
the x's keep getting pushed to the left but they are supposed to be centered
X X
X
X X
X
X X
Big smo
Well-Known Member
Center 4 on their own driver
O cobs 5000k
X cobs 6500k
Not necessarily a full out veg light just for 30 days or so from seed.
X----X
---X---
O----O
---X---
X----X
JorgeGonzales
Well-Known Member
X----X
---O---
X----X
---O---
X----X
---O---
X----X
---O---
X----X
verticalgrow
Well-Known Member
g'day Cobby,
Whats the driver current run at to get the CLU058 1825 @ 50w for 60% eff?
VG