How can I tell if a MH ballast is a pulse or probe

[tcoral]

The writing on the tag is faded and I need to figure out if the ballast is a pulse or probe start. Is there an easy way to tell?

 

[buzzbombtom]

m80 pulse i do believe

 

[tcoral]

<a href=showthread.php?s=&postid=13503100#post13503100 target=_blank>Originally posted</a> by buzzbombtom
m80 pulse i do believe

???



This is a PFO 175 watt ballast that I can't read the writing on anymore . If it's pulse I'll be good to go for using double ended bulbs, if it's a probe I have to use mogol.

 

[buzzbombtom]

can you post a pic?

 

[Underwaterparadise]

If it's an older PFO more then likely Probe.

175w has to be mogul 150W is HQI

 

[buzzbombtom]

rob you and i are on the same wavelength today, you got out what i was trying to confirm lol...

 

[kdblove_99]

I would guess probe M57. The PFO electronic ballast come in a white box unlike tehre normal gold colored ones. Mogul is better anyways

 

[tcoral]

OK, It's a long silver box. Looking online both the pulse and the probe look the same. I can just make out a 99... on the model number from the writing on the tag.

 

[tcoral]

Called PFO, they said I had to open up the case and look at the type and ANSI code on the ballasts inside. On doing that I fould out it is indeed a probe start ballast.

 

[tcoral]

<a href=showthread.php?s=&postid=13503369#post13503369 target=_blank>Originally posted</a> by kdblove_99
I would guess probe M57. The PFO electronic ballast come in a white box unlike tehre normal gold colored ones. Mogul is better anyways

Why are moguls better?

 

[kdblove_99]

better bulb selection IMO