Ventilation trouble..

So i've had a few grows before, but i want this one to be stealthy, and heres my predicament. So i am going to be making a cabinet grow box. I need an Intake and an exhaust...BUT, how do i make it so the fans and or light coming from the intake and exhaust arnt discovered. Thanks for any tips

The pre-filters for A/C that you find are good too cover your intake and exhaust, they block some light and well ..filter. Right angles are good for blocking light along with flat black paint. Using ducting on your intake and exhaust works, Get Creative!! Good Luck