120v

  1. CnstntGrdnr

    Digital Ballasts: 120V vs. 240V, what's the difference?

    High! I'm in the process of shopping for digital ballasts for my up and coming FIRST grow and wanted to ask y'all a question before I spend a couple of hundred dollars on this piece of equipment. I noticed there's an option to buy a 120V OR a 240V digital ballast - I'm not an electrician...