noob question...difference btwn. glow plug controller and relay

[Trying my best]

What is the difference between the glow plug relay and the glow plug controller on a 7.3 or are they the same thing?

Thanks

 

[alienturtle]

The relay sits on top of the controller. 2 different things.

http://www.oilburners.net/wiki/tiki-read_article.php?articleId=4

 

[Trying my best]

The relay sits on top of the controller. 2 different things.

http://www.oilburners.net/wiki/tiki-read_article.php?articleId=4

Ok, thanks