Light shining from exhaust window any solutions?

propertyoftheUS

Well-Known Member

• Jul 19, 2013

• #1

Right now I am running a passive exhaust system, only problem is all the light shining out of the window. I need to figure out a way to keep the light from illuminating the window but let air out. Its been around 95 deg here during the days and I was wanting to flip my 12/12 cycle to on at night but cant let the world see a bright beacon on top of the hill in the dead of night!!!! Thanks in advance for any suggestions/solutions.

 

slowandsteady

Well-Known Member

• Jul 19, 2013

• #2

make a light trap. google it

 

GoLdD

Well-Known Member

• Jul 19, 2013

• #3

slowandsteady said:

make a light trap. google it

Click to expand...

What he said!

 

propertyoftheUS

Well-Known Member

• Jul 20, 2013

• #4

Googled and Binged it with shit results to say the least. One hit sent me to an old RIU thread with an illustration that makes no sense what so ever. Anybody with an idea of how to build on for a box fan?

 

M

MrMeanGreen

Active Member

• Jul 20, 2013

• #5

just attach a few foot of ducting with a bend or 2 in it.

 

GoLdD

Well-Known Member

• Jul 20, 2013

• #6

Take a few feet of flexible ducting, spray paint the inside of the ducting flat black, and bend it at a 90 degree angle twice like an "S", and presto no more light leaks. Also here is a google link to light traps for grow rooms, apearently you don't know how to use google, it took all of 10 seconds to find literally hundreds of posts on the subject.

https://www.google.com/webhp?source...f.&fp=79b52708a1c23fbe&ion=1&biw=1920&bih=972

 

propertyoftheUS

Well-Known Member

• Jul 20, 2013

• #7

Apparently<< I don't know how to use Google, anyway thanks for the link, much appreciated!!

 

GiantCentipede

Member

• Jul 20, 2013

• #8

I posted one earlier. Try it out. Shouldn't cost more than a few bucks and about 20-30 minutes time.

https://www.rollitup.org/grow-room-design-setup/695802-cheap-easy-light-trap.html