Here's a link to the light I purchased for my sewing machine. I was buying DVD's from Patsy Thompson's site so I went ahead and bought the light there too. I'm sure it's available in other places too.
There's no magnet with this light - it uses that sticky 3m product to attach to the side of the sewing machine. (At least I think it's made by 3m but I'm not going to go look).
PLEASE, if you're going to ask me a question - I need your email address! Just type it right into the comment box. I try to respond to ALL questions when I have an email address. I rarely type up a separate post to answer questions.