I read on another site that the S400DD lamp is a conversion lamp for using a HPS ballast with a MH bulb...I was just wondering if the ballast in the LL store was HPS or MH. Thanks in advance.
kanikapila1
Feb 2 2005, 07:03 AM
Check out the response to a similar question I had here...
Ushio S400DD QuestionHope that helps...