Canopy/Stand Exhaust Fan?

[HaZRaTTy]

Originally Posted by plutoniumJoe

I used a 12volt wall wart that was on the same timer as my lights. So I only ran the fans when the halides were on in the winter. All day long in the summer.

Explain, do you mind linking me what you used. Are 12V adapters have the circular input plug like a laptop charger how did you get it to power a 3-4pin plug?