A month or two ago, my friend bought a new 600w Digital Greenhouse HPS setup from High Tech Garden Supply. It's a digital ballast with a 2'x2' air-cooled hood/reflector. We had been running this 12/12 at my friend's house for the last 3 weeks or so with no problems when the thing just powered down 6 hours into the 12.

I didn't have much time when I got over to his house, but I checked over everything as quick I could. The bulb is definitely screwed in tight (as I'm aware this is a common problem) and everything was connected properly. When plugged in to the wall outlet, the digital ballast's cooling fan powers on, so I know that the ballast is receiving power at the very least. When I unplug the system, and plug it back in, the element inside the HPS bulb will flicker blue for a split-second and then shut back off, but never emit light.

It will be two days or so before I can get back over there to troubleshoot the light so I was wondering if anyone had any ideas or experience with this type of problem.

Thanks in advance-
gainesvillegreen Reviewed by gainesvillegreen on . Digital Greenhouse brand HPS A month or two ago, my friend bought a new 600w Digital Greenhouse HPS setup from High Tech Garden Supply. It's a digital ballast with a 2'x2' air-cooled hood/reflector. We had been running this 12/12 at my friend's house for the last 3 weeks or so with no problems when the thing just powered down 6 hours into the 12. I didn't have much time when I got over to his house, but I checked over everything as quick I could. The bulb is definitely screwed in tight (as I'm aware this is a common Rating: 5