I'm trying to make an automated mulch farm, and to work the moisneter nedds to be in a dark place. I tried to use pipes with facades that connected the outside of a small dark room where the moisneter was to it, and they let light pass trough. Then i tired Factorization routers,Tubestuff(i'm using a modified mod pack) buffers and chest, and they all let light pass trough. What could i use?