Noob needs opinions on diy cob build
- Thread starter batrgrower
- Start date
batrgrower
Well-Known Member
Wow. Looks like some really useful stuff in there. I'll be checking that out for sure. Thanks.
woodsyn2o
Well-Known Member
batrgrower
Well-Known Member
I already have been reading for days and days haha.
I watched that one from growmau5. Also, many of his others including that 7 part beginner series. Good stuff in there.
CobKits
Well-Known Member
at 75W id use 133s
batrgrower
Well-Known Member
Oh okay, just looked at the specs on those. Says up to 75w. Should I expect trouble if I run the lights at 2.1a?
batrgrower
Well-Known Member
Good call. I think the 1216 would definitely work better.
batrgrower
Well-Known Member
Is there a chart floating around here anywhere that shows the photon Flux for given wattages like Jorge had in his thread for the other chips?
batrgrower
Well-Known Member
Anyone have any idea on predrilled heat sink to use with the citizen 1212 that's not a pin type?
Jorge used the MechaTronix 9980, but I'm having a hard time finding those in stock anywhere.
Jorge used the MechaTronix 9980, but I'm having a hard time finding those in stock anywhere.
batrgrower
Well-Known Member
Do those 133 heatsinks have predrilled holes in the sides of the base to mount them from the side of some angle aluminum?
batrgrower
Well-Known Member
Where are these types of junction boxes found? The threads I got them from say they came from northern grow lights which I can't find a website for?
Did they change to horticulture lighting group? Thats what comes up from a google search.
Are the ones with the built in potentiometer any good or better to get an external one?
Did they change to horticulture lighting group? Thats what comes up from a google search.
Are the ones with the built in potentiometer any good or better to get an external one?
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batrgrower
Well-Known Member
I'm going to be running 12 clu048-1212 cobs with 3 Meanwell 185-1400 drivers.
To calculate max draw do I just use the standards VxA=W to add up how many amps I'll be pulling from the wall?
So 12 cobs at full 1.4a power would be 12x1.4?
To calculate max draw do I just use the standards VxA=W to add up how many amps I'll be pulling from the wall?
So 12 cobs at full 1.4a power would be 12x1.4?
coreywebster
Well-Known Member
Hmm I cant find it either which is strange.
@robincnn has northerngrowlights website gone in favour or HLG site? Any suggestions for the junction boxes for this guy?
batrgrower
Well-Known Member
I've got my 3 light bars built. Each 48" bar has 4 1212s on it spaced 14" apart.
I'm starting to lean on maybe only running 2 of the rails over each 50"x30" system to save a little money up front on the build.
I've calculated par watts, based on a chart @JorgeGonzales made a while back, at 16.42 watts/Sqft using only 2 bars.. So 8 lights. Running at 1.4amps, so 50.4 watts each.
Can anyone give me some insight on whether or not this is a good setup or if it would be better to run my original plan of 12 lights at 1.05amps. That would be 36.8 watts per light and about 19 par watts per square foot.
