Someone Help Me Out with a Light Trap

i need to know how to make a light trap for my upcoming grow respect to who helps

https://www.rollitup.org/grow-room-design-setup/76328-vent-light-trap.html . theres a link for ya

Here is another pic, you can get ideas out of it and make some changes yourself: https://www.rollitup.org/grow-room-design-setup/166143-vent-hole-tubeing.html#post2145374