You can build a magnetic ballast for about $100. You'll spend triple that for a digital.
killerweed420 Reviewed by killerweed420 on . DIY lighting ballast? Hi I am planning on growing one mother plant and getting clones off of her over time. I was wondering, since im a little low on cash, if it would be possible to home-make a lighting ballast. feedback is very much appreciated :rastasmoke: Rating: 5