Yeah closer to the filter is better. I built a new computer recently and i cut pieces of these http://duckbrand.com/products/weath...-a-c-replacement-filter/24-in-x-15-in-x-25-in to the size of the fans and duct-taped them on the outside of my fan intakes to act as dust filters and the fans still act like a vacuum cleaner,so much cat hair gets stuck in them.
My box is almost done,only little problem i see is my intake pipe too,two 90 degree pvc elbows lined with black tape still let a little light in,need another elbow. Would be interested to see how your light trap contraption works out.
The phillips bulbs i have dont have screw-on diffusers so i have to melt them and cut them off with a knife but yeah i probably will do that to most of them.
My box is almost done,only little problem i see is my intake pipe too,two 90 degree pvc elbows lined with black tape still let a little light in,need another elbow. Would be interested to see how your light trap contraption works out.
The phillips bulbs i have dont have screw-on diffusers so i have to melt them and cut them off with a knife but yeah i probably will do that to most of them.