new grow room 250w or 400w hps?

well instead of waiting for htg supply i decided to place an order at growwurks.com

i think i will be much happier having the switchable ballast.

does anyone know if i can run a 600 watt bulb on the 400 watt setting?


Sun Tube 6" Air-Cooled Reflector
Ship in discrete brown box?: Yes
9043151$117.95$117.95

Eiko HPS - 400 Watt
BLB-0031$19.95$19.95

Nextgen 400 and 600 Watt Digital Ballast (Works on MH and HPS Bulbs) *** FREE SHIPPING
Select power cord.: 120v Cord (Included)
NG400/6001$217.95$217.95
 
ForcedInduction said:
does anyone know if i can run a 600 watt bulb on the 400 watt setting?
Click to expand...


Not exactly what you asked but I believe it still applies.



Q. Can I interchange bulbs between systems?​
​
​

A. No. You should never interchange bulbs between systems unless they are specifically made to do so. Lots of people ask if they can use a 250 watt bulb in a 400 watt system. The answer: Definitely NOT! The bulb could become unstable and explode. Also, never put Halide bulbs in a High Pressure Sodium system. The ballasts are only meant to run the type of bulb they are rated for. A Halide bulb in a Sodium system could overheat and explode. There are conversion bulbs available. These are High Pressure Sodium bulbs that are meant to run off of a Halide ballast.

I must stress again: use bulbs only in their corresponding systems.

http://www.accessdiscounts.com/growlightsfaqs.html​
 
Bro...

DO NOT MIX WATTAGES....

AT BEST YOU BURN THE BULB...

THE WORSE STARTS WITH A FIRE...

You will not be switching bulbs all the time...

400w for the hot months and 600 for the rest...

and you will want to clean the glass anyways...

...

remind me how you are ventilating your tent...

the 4" squirrel cage fan for the light .. right?

and what for an exhaust?
 
GypsyBush said:
Bro...

DO NOT MIX WATTAGES....

AT BEST YOU BURN THE BULB...

THE WORSE STARTS WITH A FIRE...

You will not be switching bulbs all the time...

400w for the hot months and 600 for the rest...

and you will want to clean the glass anyways...

...

remind me how you are ventilating your tent...

the 4" squirrel cage fan for the light .. right?

and what for an exhaust?
Click to expand...


yes i know not to mix wattages haha

i only ordered a 400w bulb for now, but will get the 600 very soon..


yes i'm using the squirrel cage to force air through the cooltube and suck air through the intake as well. and if that doesn't work its plan B!

its not a tent either lol, its a small closet...
 
So you will use the cooltube's fan as exhaust and cooling for the light?

and my bad on the tent thing...lol... stoners...:eyesmoke:
 
Nice thread!!! You guys just convinced me to bump my watts up to 400 from the planned 250!!

My grow closet is 3ft x 2ft x 5ft and i'm planning on 2 fans. 1 for the hood and one for ventallation. do you think 2 6in 160cfm infline fans would cut it?

BTW this is my first thread subscription.



Thanks,
CC:bigjoint::bigjoint:
 
no axial fans allowed...:razz:

Fans like these are a waste of money.. in my opinion...

inline_duct_fan.jpg
 
some people use axial fans...

But I believe in getting the job done with the right tools...

you can always "tone" the fan down with a speed controller...

a bigger fan at 50% power is quieter than and uses less energy than a small fan "all out"...;-)
 
with a small area you could run...

room air >>> reflector>>> fan >>> filter>>>

but ideally you want 2 fans...

and run it like this... intake fan optional...



​
 
Ok cool well i found this online at grainger and it looks like it could work well...

http://www.grainger.com/Grainger/items/1TDR5


any thoughts my biggest concern is the fact that it has a listed ambient tempeture of 104 degrees do you think this will mess up the temps?

I looked at other squiral cage fans similar to what other people have recomended and used on RIU and they all seem to have this 104* F rating of ambient temp.

Do you think i should just dismiss this? or should i keep looking?

Thanks,
CC:bigjoint::bigjoint:
 
it will be fine bro...

but the other type of fan I showed you... is easier to hook up directly to the ducts...

10901.jpg
 
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