Used this box to house a bare metal LED power supply in my house. Cut a few lines with an end mill to allow airflow to the PSU and glue the screen over the holes. I liked the fact that the same holes used for attachment are used to screw in the lid, but I found the typical handle screws are too large for the holes to slide completely over the hole. Might be a good mod for the future to allow the head of the gripper screw to go into the hole almost to the back/bottom of the hole.