Hi!
Yesterday i finally after 3 weeks got my 35W HID ballast and the normal 2 bulbs for about 32$ so its now totally ok to start to playing with HID without getting in to a economical breakdown for buying one.
It all worked just fine as to lit up a supernova in the room but one thing i dont know if its ok or not is that the ballast have a constant not really low hum or so but more a little higher pitch sound from it that ofcourse is from the switching in some way. I thought these ballast should be more or less totally quiet so that suprised me a lot.
Just when it fires up the bulb, no matter if it hot or cold, so is it totally quiet for about 1/4-sec but after it starts to make this sound. The sound is stronger at start of a cold bulb but getting lower when it heated but still absolutely audible.
So is this sound normal? I have heard both yes and no so i dont know if i should send it back or not but maybe someone here might know if this is normal or not?
Yesterday i finally after 3 weeks got my 35W HID ballast and the normal 2 bulbs for about 32$ so its now totally ok to start to playing with HID without getting in to a economical breakdown for buying one.
It all worked just fine as to lit up a supernova in the room but one thing i dont know if its ok or not is that the ballast have a constant not really low hum or so but more a little higher pitch sound from it that ofcourse is from the switching in some way. I thought these ballast should be more or less totally quiet so that suprised me a lot.
Just when it fires up the bulb, no matter if it hot or cold, so is it totally quiet for about 1/4-sec but after it starts to make this sound. The sound is stronger at start of a cold bulb but getting lower when it heated but still absolutely audible.
So is this sound normal? I have heard both yes and no so i dont know if i should send it back or not but maybe someone here might know if this is normal or not?
