Thanks Katins. I know that can be a problem. Not so much for me here on the tomato farm. When the power goes, which has been often, a generator kicks in and turns off when power is restored. Plus it is a low budget DIY cupboard. Usually it means a bit more manual input to keep it running ok. Budget spent so far R1100.00 or around $80.
I definitely would put better goodies in if all materials were new and I was aiming high end stealth for re-sale.
My veg fridge has been running on a timer like this one for about 6 months now without to many hiccups.
I am reasonably happy overall on the budget so far. Also have provision if I decide to put in more lights and a other or better fan.
Thanks for the interest and following this budget build.