Question about Sunlight Supply 400 Watt Hps Sunsystem I Sun Gro Plant Grow Light
I have a 400 watt hps, now the light just went out so i tried a new bulb, it didn't work in it either so it's def the ballast, I need to find out which part went bad, now a 400 watt MH conversion bulb will light up in it a little but the 400 watt HPS won't come on at all. All I hear when I plug it up is a humming coming from the ballast. I mean its only got three parts in it right? So there should be someway to test it. Oh I have a digital multimeter if you could tell me what the settings should be set to on it to test the transformer, ignitor, resistor. Thank you so much for your time and effort in helping me whatever the outcome. Peace :) Roger.
The ballast may not be the problem. The problem may be the ignitor (starter). If the fixture humms, then the ballast is most likely working. Ballasts (transformers) do not go bad very often.
Posted on Nov 17, 2008
Roger last time a ballast stopped working on me i simply replaced it on the grounds i might become a fire hazard do you no what i mean they are not that expensive
Posted on Nov 09, 2008
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Posted on Jan 02, 2017
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