[stickyickyicky]

can some one post or find a post of pc fans 1.2.3 DIY. i do not know what to get from RADIOSHACK to convert 115vac to the 12vdc i wanna run more than one fan maybe like 1 intake + 1 exhaust for cab and one for the light exhaust. so a total of 3. my grow is started in a tub. u can see pics in my sig... please help

fans are like 5 -6 bucks

[sugabear_II]

Hello there sticky,

You need a replacement power supply, the kind used for powering things like portable cd players and such. They have them at radio shack. You can run two fans off of one and it will work fine. They also have an adjustable power output, the higher the voltage the faster the fan. Alternately you can just use any old ones you might have lying around, 12v is good, but 9v will work too. Just stip the wires and connect the one with the stripe to the red wires of the fans and the one without the stripe to the black wires. The voltage is very low and will not hurt you so no worries, but do use wire nuts or wrap them in electrical tape. You can run two or more but each one you add will lower the speed of all of them. If you want them all to be fast you'll need a power supply for each.

Also if you are growing in a tub I would recommend just having a passive intake, active exhaust and a fan for air movement.

[stickyickyicky]

how many FANS could you run off this unit?




specs...

-------------------------------------------------

Voltage Required AC 110/120 V (60 Hz)


Power Type - AC-to-DC Power Adapter, External


Intended Device Type -Products requiring 12VDC/1000mA


single voltage - Yes


Power Voltage - DC 12 V (1000 mA)

https://www.radioshack.com/product/in...rt&tab=summary

[Don Logan]

I think if you ask the guy/gal at Radioshack, they will be more than happy to help you. Just tell them what you want, not what u want it for (or lie and say it's for your PC Mods). Peace.

mine are 48 volt and cool a 600 cab.

[bounty29]

Originally Posted by stickyickyicky

how many FANS could you run off this unit?




specs...

-------------------------------------------------

Voltage Required AC 110/120 V (60 Hz)


Power Type - AC-to-DC Power Adapter, External


Intended Device Type -Products requiring 12VDC/1000mA


single voltage - Yes


Power Voltage - DC 12 V (1000 mA)

https://www.radioshack.com/product/in...rt&tab=summary

I just got three PC fans in the mail. They each draw 12v and 0.45a, which is 450mA. If I put two of those on there I would be at 900mA, which is 90% of the maximum. I don't think I'd want to go any higher than that, most places say use 80% or something but I'm not sure if it's as much of an issue here. I got my converters from https://www.surpluscenter.com/sort.as...06091508140600, they've got some good prices. If you only need one it'd probably be cheaper to go to radioshack, but I needed three so it worked out for me.

30 volt adapter and 12 volt adapter bridged together pushing 8 of them

[tnt]

you van also youse your old computer input suplay

there is a 12 volt and a 5 volt line in it

so you can make diverend fanspeeds and you can put 50 fans on 1 computerinput


good luck

tnt

i used a printer adapter..and some adapter... picked up somewhere.. but my fans have a higher voltage.

[stickyickyicky]

Do they make 110-120 volt ac ones? where to get them ? less converting to dc would be alot easier.

LIGHT BULB!!!! anyone ever think for using a battery charger for a car? mine has 2 - 10- 50 amp settings. i bet some one with a great background in ELECTRICS might be able to figure out the best way for this to work. or i guess u could just set it to like 10 amps and i bet u could run 4 of them off that?????