Hello Hydrored! Nicely done. Ive made two of those. Would you know how to make them entirely waterproof, or is that downright impossible and stupid with an external fan? Ive got an interior garden thats just been roofed. Its not 100% waterproof though, as there are some open, vertical spaces to allow for airflow and ventilation at the roof. So, basically Id like to use them in my small, interior garden, but Id like to make sure, that I dont get some unwanted water on them and cut the power, start or fire, or who knows what!