Went to fix a 70W HPS fixture (ignitor internal to lamp) at a neighbors the other day after he mentioned it had stopped working. Said it had recently gone out and put a new new-old stock lamp in himself, but that did not last long until it went out again, so I went over and swapped the bulb over with another new-old spare that he had, and then noticed the lamp started cycling.
Got me thinking, can a faulty ballast cause the lamp to cycle in addition to a issue with the lamp itself; is it most likley to be a Ballast issue or a defective batch of supposedly new-old stock HPS lamps that he had lying around?
Aside from the fact I needed to re-gland the SWA cable going into the fixture as the armour part of cable was not in the gland and the gland used was just a normal plastic nylon compression gland and not a SWA one; I want to know if the fault is with the ballast or the lamp/s? I did also notice there was no PF correction capacitor, but it may have come out the factory like that.
Anyway, my neighbor has ordered a new 70W HPS lamp of Amazon (hopefully one with a internal ignitor), after the new-old stock spare that he had, quickly started cycling when I put it in. If the new one from Amazon does the same thing, then I guess it's the ballast.
And yes I am aware there are fixtures more efficient than HPS lamps these days, but my neighbour wanted to maintain the orange colour of the lamp, even though you could stick a gel filter over a LED fixture.
Regards: Elliott.
Got me thinking, can a faulty ballast cause the lamp to cycle in addition to a issue with the lamp itself; is it most likley to be a Ballast issue or a defective batch of supposedly new-old stock HPS lamps that he had lying around?
Aside from the fact I needed to re-gland the SWA cable going into the fixture as the armour part of cable was not in the gland and the gland used was just a normal plastic nylon compression gland and not a SWA one; I want to know if the fault is with the ballast or the lamp/s? I did also notice there was no PF correction capacitor, but it may have come out the factory like that.
Anyway, my neighbor has ordered a new 70W HPS lamp of Amazon (hopefully one with a internal ignitor), after the new-old stock spare that he had, quickly started cycling when I put it in. If the new one from Amazon does the same thing, then I guess it's the ballast.
And yes I am aware there are fixtures more efficient than HPS lamps these days, but my neighbour wanted to maintain the orange colour of the lamp, even though you could stick a gel filter over a LED fixture.
Regards: Elliott.
