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Can not tell which is which ( pc fan )

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
D'oh! Missed that. Good eye. I go now to hang my head in embarrassment and shame :badday:
 
ok thanks my man ,

ill go to amazon or somewhere and get one

maybe i can find a used one somewhere ..


EDIT ,

all these converters plug in to cigarette lighter outlets ,like whats in your car

http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=DC%2FAC+converter&x=17&y=21

do they not make a converter box that has the 120v cord on it so you can plug it into your wall receptacle ?

i might just be better off getting the ac fans instead of the dc .

You could just go to a car boot sale or market. There's usually a whole bunch of people trying to sell old power supplies. Have a rummage around until you find one that has "12V" on it.

Sorted.
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
:hijacked: heh, heh... he said boot.

Apropos of nothing other than the differences in English found on either side of the pond, here in the colonies, a car boot is a device used to prevent you driving your car until you've paid your fines. Stateside, we call the car's storage space a trunk.

 
Last edited:

StealthDragon

Recovering UO addict.
Veteran
I recommend picking up a 12v supply at a thrift store...what are the numbers on the fan besides 12v? most of the time it should say the amps too. like 0.3 or 0.7A.. I run a bunch of cheepo 0.3A pc fans and they pull through filters just fine if the filter is built right.

hey freezerboy ask em what a fannypack is :)
 
4

420tyme

I recommend picking up a 12v supply at a thrift store...what are the numbers on the fan besides 12v? most of the time it should say the amps too. like 0.3 or 0.7A.. I run a bunch of cheepo 0.3A pc fans and they pull through filters just fine if the filter is built right.

hey freezerboy ask em what a fannypack is :)

it says 12v 0.60A on the fan . is the 0.60A good ?

ALSOOOOOOOOOO ,

i came across an adapter for a electric pencil sharpener that i threw away a while back

and i actually have another somewhere around here , i just got to find it .

i decided to look on the back of it to see what it said ( ac/dc adapter 12v )

i thought to myself ( hell yea lol )

so i wired it up to the fan and it was on full blast :)

thanks for all the great info everyone :tiphat:
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
What lamp wattage are you using? 50 cfm ain't much. Especially after you get a scrubber hooked up. Note also that quiet is a highly relative term and they give no indication of dB or sonnes. If the cab is locked away in a room no visitors will ever enter, loud fans can be tamed. If it's in a common area, noise kills stealth dead.
 
4

420tyme

What lamp wattage are you using? 50 cfm ain't much. Especially after you get a scrubber hooked up. Note also that quiet is a highly relative term and they give no indication of dB or sonnes. If the cab is locked away in a room no visitors will ever enter, loud fans can be tamed. If it's in a common area, noise kills stealth dead.

Im using a 150hps ,

i did not see where it said 50cfm , how much would i want ?

the cab is 22"wide
18" deep
13" to light

 

David762

Member
Try Radio Shack, if you're in the USA.

Try Radio Shack, if you're in the USA.

i just checked and the cell phone charger im using to power it says 5.0 v

and the fan is 12 .

so i guess it is the cell charger not being strong enough

do they make power cords for these fans ?

Try Radio Shack, if you're in the USA. They have some decent wall-wart type 12 VDC power supplies that can take a variety of adapter ends (polarity, etcetera) -- I prefer the adapter with the protruding pin connectors. Buy the highest power output (like 1.5 A @ 12 VDC), since you might be able to run 2 fans off the single power supply. While you are there at RS, you might want to pick up an inexpensive multimeter -- it will help you wire up the fan to your new 12 VDC power supply properly.

The 5 VDC power supply you have been using to try the fan out would eventually burn out the muffin fan motor -- I'm somewhat surprised that the motor turned at all. With the proper voltage and a bit of excess current available, you should have no problem detecting air movement.

:tiphat:
 
4

420tyme

Try Radio Shack, if you're in the USA. They have some decent wall-wart type 12 VDC power supplies that can take a variety of adapter ends (polarity, etcetera) -- I prefer the adapter with the protruding pin connectors. Buy the highest power output (like 1.5 A @ 12 VDC), since you might be able to run 2 fans off the single power supply. While you are there at RS, you might want to pick up an inexpensive multimeter -- it will help you wire up the fan to your new 12 VDC power supply properly.

The 5 VDC power supply you have been using to try the fan out would eventually burn out the muffin fan motor -- I'm somewhat surprised that the motor turned at all. With the proper voltage and a bit of excess current available, you should have no problem detecting air movement.

:tiphat:

go back one page my man , i got a 12v adapter that i have from an old pencil sharpener ,

ill check into that power supply
 
The nice thing about the radio shack power supplies (wall warts) is that alot of them are variable with a little switch that will allow you to select a voltage between 0-12V. That way you can turn the fan(s) down and up to find the perfect noise/CFM vs ambient temperature combinations.

Is that 120mm fan btw? If so, there are some very good 120mmx38mm (they are thicker than usual) fans out there for overcoming static pressure and can be used much, much better with a scrubber than the standard thinner fans.
 
4

420tyme

Is that 120mm fan btw? If so, there are some very good 120mmx38mm (they are thicker than usual) fans out there for overcoming static pressure and can be used much, much better with a scrubber than the standard thinner fans.

i don't know my man ,

it don't say what mm it is
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
i don't know my man ,

it don't say what mm it is

That's what rulers are for. 120mmx38mm would be a 4" diameter, 1.5" thick. The twin fan is 80mm or 3", no thickness given.

50 cfm may be sufficient for cooling with no scrubber but. the pressure caused by the scrubber may be too much for it to provide adequate cooling depending on the ambient temp of the room it's in. Axials move the most air in the absence of static pressure. With static pressure, they move the least.

Don't know if this has been posted yet but, just in case, do yourself a favor and read through Ventilation 101
 

Panama Red

Active member
That model Datech is a 92x25mm(3-5/8"x1") and moves 82 cfm.

Not too bad and it can probably handle exhausting the heat and scrubbing the smell.

Probably

Seeing as they are a used-bin bargain, I would buy a second one.

Never hurts to have a spare and if you find that the single doesn't scrub and cool, you can isolate the HPS with a sheet of glass and have one fan cooling the upper light cavity and the other scrubbing the lower plant cavity.
 
4

420tyme

ok thanks guys ,


hey if im not worried about the smell then i dont really need a scrubber do i ?
 

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