Ballast setting for Radium bulbs

[mchammer]

I just purchased Radium bulbs to replace my 250W XM MH bulbs and I was wondering which setting I should use on my select a watt ballast. I have 250, 250SA, 400. I know not to use the 400 but I'm not sure if I should leave it at 250 or 250SA. It burns a little brighter on SA. Any help would be appreciated.

 

[shifty51008]

afaik you want to run them in the 250SA mode.

 

[sirreal63]

Use the 250SA setting, it isn't really M80 spec but it is close enough.

 

[Yogre]

Agree with sirreal63, I run my Radiums on the 250SA setting. The 250 was way too blue, and I suspect the PAR was not good either.

 

[mchammer]

Thanks for the advise. I set them to the 250SA. I just didn't want to burn my bulbs out any sooner then I have to.

 

[Alex T.]

Thanks for the advise. I set them to the 250SA. I just didn't want to burn my bulbs out any sooner then I have to.

You'll burn them out sooner on the regular 250 watt setting.The 250 Radium is an HQI bulb which pulls considerably more wattage.

 

[mchammer]

Thanks for the info Alex T.