Hey anyone with the knowledge of hps bulbs out there please help!
I just bought a little 70 watt hps and ballast set up off ebay 2nd hand. Just as an added bonus to my CFL lit grow area. My Problem is the bulb just flickers ever so briefly but does'nt ignite. I've checked all conections and the ballast hums nicely, the current is obviously getting to the bulb or it wouldnt flicker right? I cant see any damage to bulb and have looked up stuff on net but never had a HPS or ballast before.
Do i just need a knew bulb?
Should I get a circuit tester?
or is it likely to be the ignitor?