This is SO old, but you linked to my blog so I thought I'd answer you. Those aren't electric. they are candle lanterns that I found at Kirkland. :)

Have you tried Rejuvenation Hardware? Can't find my catalog or I would check if they have that model.

Thanks for all the help and suggestions. I found the link for the less expensive one.I think it's very close. It's only $139. Here is a link that might be useful: Kichler light from Capitol

An interior design colleague of mine created her own pendants just like these, using this rope cord kit from Etsy: https://www.etsy.com/listing/475828472/1-diameter-electric-rope-light-cord-for You can find a similar kit at World Market, but the Etsy listing allows you to choose a custom length.