Well it will fire but you run the risk of short term bulb life and the same for the ballast .you might try series a bunch more of the 100s to lower the impedance just a thought
I bought 4 of them for 220 I found that if the cord was too long they would not start the mh lights . but when i shortend the lamp leads they work just fine also dc hydro is a really good place to shop
If you have a return in your grow room you could put a charcoal filter on ir and vent to the rest of your home and pull make up air from the rest of your house, you know those filters really do a good job and then you would not have to run a heater that will save you on electric and if smell is...
I got the 60 also but I am doing mine a little diffrent I have my tubes next to each other and I added another tube to that side so I guss if I stopped there I could call it a 70 but I cant stop tinkering with it so I cut holes in the other side and added 7 more tubes that have 12 holes each...