Those inexpensive speed controllers will cause your fan to buzz, and are reported to bad for the fan motor. The topic is under discussion over here.And I just got these plain cheap black speed controllers. And a 6" inline green fan off hydro farm
Those inexpensive speed controllers will cause your fan to buzz, and are reported to bad for the fan motor. The topic is under discussion over here.And I just got these plain cheap black speed controllers. And a 6" inline green fan off hydro farm
Would this work for my 6" fan?When I got the variac it was 54.00, either way I would buy one at 60.00. Those cheap ones aren't good for the motor, I've even heard of them being fire hazards. The variac is a no brainer for peace of mind.
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 VariacHyper 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.
Yes, as mentioned in that on-topic thread I linked to: that's what I use.Would this work for my 6" fan?
http://www.amazon.com/gp/aw/d/B00BXJYO6I/ref=pd_aw_sbs_1?pi=SS115&simLd=1&dpPl=1&dpID=41XC8FDwqWL
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.Yes, as mentioned in that on-topic thread I linked to: that's what I use.
I think it would but I have the 3 amp 64.00 one for my 4" ventech and really like it. I'm a newer indoor grower so my only experience is with the variac.Would this work for my 6" fan?
http://www.amazon.com/gp/aw/d/B00BXJYO6I/ref=pd_aw_sbs_1?pi=SS115&simLd=1&dpPl=1&dpID=41XC8FDwqWL
great info, thanks a bunch man!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
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 150sCould they be 730nm LEDS? otherwise send it back
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.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
And what do you think about which one would put of the least heat? About the same?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.
Same chips + same wattage=== same heatAnd what do you think about which one would put of the least heat? About the same?
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 betterThe 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
You need to add the driver into that equation, good luck getting the info on those on a lot of lights though.Same chips + same wattage=== same heat
They are freely offered, why don't you ask for a spec sheet.....You need to add the driver into that equation, good luck getting the info on those on a lot of lights though.
4 x 4 tent for veg same for flower. 2 different tents.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