Do I have one? Not yet. Quick sawzall cut. Lol. Or I hook up the can fan as an exhaust for the room kinda like a passive intake. I have vents cut in the bottom and the ac right now.
you dont want to suck air from the room threw the light..
What you want to do is seperate intake for light, goes like this..
outside to intake duct to fan to light to exhaust duct to outside.
you want the fan to blow thru the light, here is why..
Because if you suck air threw it and it has any leaks, and i heard they all leak,
then you will suck smell out of the shed.
but when you push it threw that does not happen...
You need 2 fans... a cheap $25 fan will work 440 cfm
Then you need to hook the can filter up to exhaust fan, to exhaust duct..
2 things that make this even better is a
Speed fan controller for the can fan, so yo can scale it back to min...
that will keep pulling in new c02 but yet not expell your ac as much...
And secondly, use insulated duct instead of the shiny shit(worthless)