JerryMawuana
New member
I have a Vivosun 400 watt MH with a digital ballast in my veg tent. I've been having issues with it turning on. At first I thought it was the bulb. So I put a HPS in there (which turned right on) for the night until I could buy a new MH the next day. The new bulb worked as it should... then it started acting up again last night! I blew the breaker, so I waited 30 minutes so everything could cool down, it wouldn't turn on. I waited over 2 hours, still nothing. It eventually turned on after I reset the timer. So then today it was supposed to turn on at 4:00 pm and it won't turn the MH on again. I reset the timer, bypassed the timer and nothing. I put the HPS in there and it turned on right away. Is my ballast the problem?