IF you are new to LED and want help choosing what to buy, POST HERE!

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Beezcheeze

Beezcheeze

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Those are crazy expensive just to tone down the speed. Think I'll be alright I only have one 6" fan I'd be using the cheap speed controller on. The fan is a green 400 cfm 6" fan from hydro farm.

And the bulbs I thought were blown are infared. I've set up everything with kind and the place I bought my kind lights and going to get a full refun for both lights. And I still have enough time left in my 90 day buy back warranty I can wait until my 4 rw150s show up and make the switch. These flowers are going to be treated right their last few weeks. Think that is a bad idea to change lights? I'm gonna do it anyway but will it have any major bad effext?
 
Greengenes707

Greengenes707

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Hyper fans are well worth it imo. They are sorta quiet...not silent but one of the quietest out. But the pwm fan dimmer is amazing...perfect dimming and no vibratoin or noise. Plus the fact that it uses 50% the wattage for the same air movement. Then dim it down more.
I have 16w cooling 4x12 with ~1750w.

And if niose is really an issue they make a real silent one...its just inside a muffler...but it literally is silence. The 4" literally can not be heard inside my hydro store.
 
Beezcheeze

Beezcheeze

Well-Known Member
Greengenes707 said:
Hyper fans are well worth it imo. They are sorta quiet...not silent but one of the quietest out. But the pwm fan dimmer is amazing...perfect dimming and no vibratoin or noise. Plus the fact that it uses 50% the wattage for the same air movement. Then dim it down more.
I have 16w cooling 4x12 with ~1750w.

And if niose is really an issue they make a real silent one...its just inside a muffler...but it literally is silence. The 4" literally can not be heard inside my hydro store.
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Great info. I already ordered a cheapo 6" fan for my tent. But the humming created my my controller won't due. Why would you reccomend which of the two controllers? Pwm fan dimmer or Variac
 
Beezcheeze

Beezcheeze

Well-Known Member
az2000 said:
Yes, as mentioned in that on-topic thread I linked to: that's what I use.
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Okay thanks. Have to bear with me. I had a rough brain injury not too long ago and I smoke a ton of pot: p I tend to repeat myself and forget. Have tk reread a lot of this.
 
crazyhazey

crazyhazey

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Abiqua said:
No not necessarily, you can use the Ideal Chip-Lok Holders for Cree CXA's, which mounts the diode base to the heatsink, holding the cob and then has little clips for your + and - wire....[unless you have pre-drilled heatsinks, you usually have to tap and drill mounting holes for 2 pieces of hardware]


and the Bridgelux Vero's are essentially chipholder/diode combo. They too, can either be soldered or you can use the Molex wire adaptors for solderless connections....


As for requirements most suggest a minimum of 25watts / sq. ft and optimal around 35w. I would suggest more than 10 PAR watts/per sq. ft

Depending on distance from the canopy, which can be controlled with Current [amperage] and reflectors, I would say 4-8x Cree Cxa 3070's over your canopy would be ideal....

If you need a low canopy height: you could 6x, and run them between 600ma- 1050ma from between 8-14" above the canopy for a nice spread.
This would give you roughly 60-100+ PAR watts in the canopy. So bumping up to 8 diodes to get a little more PAR watts/ sq. ft, wouldn't be a bad idea. Although with 6x Diodes running 1050MA you are at about 12.5 Par watts/ sq. ft.

If you need canopy height over 18", running 4-6x diodes @ 1.4 amps would give you roughly 80-130 PAR watts.

This is all based on numbers from the Cree CXA AB 3000K...
View attachment 3321405

If you need more height
Click to expand...
great info, thanks a bunch man!
 
Bueno Time

Bueno Time

Well-Known Member
Can I accurately test the vF of COBs with two in a series string on a single driver? The only driver I have the min vF is higher than that of a single COB so it can not run one at a time and before I order a cheap driver to power single COBs to test vF I want to make sure that it would even matter.

I had tested the vF of two in a string and they were within .1 of each other and not sure if the series wiring will skew the vF readings at all.
 
F

fluns

Member
I'm new to LED-Growing and would like to start with the following setup:

- 2x cxa 3070 - horizontal
- 12x cxa1304 - vertical or for little projects

The whole idea is the best Efficiency. If possible - change the amp by an internal potentiometer (or something like that).

Which cxa 3070 should i use
- 3000K / 4000K / 5000K ? -> 2x 3000K / 1x 5000K for veg + 1x 3000K for flower / 1x 4000K for veg + (1x 4000K + 1x 3000K) for flower ?
- Z4 / Z2 / AB?
- The AB (3000K 80cri) are the best available, but they are really expensive ( AB = 56 / Z4 = 40 -> AB = Z4 +40% price) -> Are the AB the more $/€ worth?

Which cxa1304 should i use
- 3000K / 4000K / 5000K ? 8x 3000K + 2x 4000K + 2x 5000K / 8x 3000K + 4x 4000K or 4x 5000K / 12x 3000K ?

Which amp is the best / which (dimming) driver
- cxa 1304 -> 200mA ? -> connected led's min/max? -> want to run only 3000K or 4000K/5000K for experiments
- cxa 3070 -> 700mA / 900mA / 1400mA ? -> One driver for all - dimming by internal potentiometer (or something like that)

passiv or aktiv cooling
- cxa 1304 -> passiv cooling by 40 x 76 x 21mm Cooler -> fits 5x 3W -> want to use it for 4x cxa 1304 (http://www.amazon.de/Aluminium-Kühlkörper-für-Aquarium-Licht/dp/B009FRJAO6/ref=sr_1_1?m=A30L2KD589ZCAC&s=merchant-items&ie=UTF8&qid=1419702904&sr=1-1&keywords=kühlkörper)
- cxa 3070 -> Arctic Alpine 11 Pro Rev. CPU-Cooler (http://www.caseking.de/shop/catalog/CPU-Kuehler/Sockel-775-Intel/Arctic-Cooling/Arctic-Alpine-11-Pro-Rev2-CPU-Kuehler-92mm::12725.html) -> passiv cooling possible and what's the max amp possible with low temp ?

sorry for my bad english - non native speaker ;)
 
Bad Karma

Bad Karma

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Beezcheeze said:
The bulbs are the infared I found out. I have a ? I ordered the 4 150s for flower tent. But which would be better for veg tent. Both for running cost and coverage. 4 75s or 2 150s
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Because the RW-75's can be spread out more, they'll give you better coverage, and a bigger footprint. You'll be pulling roughly the same wattage either way though.
 
Beezcheeze

Beezcheeze

Well-Known Member
Bad Karma said:
Because the RW-75's can be spread out more, they'll give you better coverage, and a bigger footprint. You'll be pulling roughly the same wattage either way though.
Click to expand...
And what do you think about which one would put of the least heat? About the same?
 
ballist

ballist

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Beezcheeze said:
The bulbs are the infared I found out. I have a ? I ordered the 4 150s for flower tent. But which would be better for veg tent. Both for running cost and coverage. 4 75s or 2 150s
Click to expand...
300 watts is a lot of light for veg. What size space? I would probably get a single 150. Cables are a pita so fewer is better
 
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