Posted by Tom in Chicago on Thursday, September 28, 2006 at 10:31AM :
In Reply to: Re: OT: Fluorescent Lighting - HO vs Electronic Balast posted by Willy-N on Thursday, September 28, 2006 at 10:17AM :
Will,
The HO ballasts are used for extended low temperature operation, you bought the right ones. The Electronic ballasts are used for energy savings with the newer T8 lamps and are not usually rated for outdoor or temp's below 32F.
Tom
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