Mh new bulbs making noise?

[Mattl22]

I traded for 2 250w mh pendants about 4months ago I just ran the bulbs that came with it until today I put 2 new 14k phoniex de bulbs in

They fired up but on oh them never stopped making the high pitched noise that they typically make towards the end of them firing up!

Any ideas I ran them for few hrs and it never stopped

 

[Mattl22]

Bump anyone?

 

[Tonyscoots84]

Is the ballast an m80

 

[jackson6745]

Never had that happen with 250w de bulbs. Try the old bulbs again. See if it's the ballast or bulbs.

 

[Mattl22]

I will check the ballast not sure what it is I'm not too farm iliac with mh

 

[Mattl22]

Well from what I've heard from another is sometimes the ballast will fire the old bulbs fine but not new ones anyone know about this?

 

[pauliwalnuts]

Can you post a picture of both old and new bulb plus the ballast?

 

[Mattl22]

It seems to have gotten lower but still there
And the one with noise seems to look les blue then other not much though



Ballast no writing on it so not sure what it is

Will get pics of bulbs

New bulbs r 14k phoniex de

 

[pauliwalnuts]

I looked on the internet to see the Phoenix bulb. Just post on of the old bulb and please use a white background when doing it.

 

[Mattl22]

Will do thanks for ur help