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They come in 3, 5 watts for the candelabra base size; and 5, 7, 9, 14 watts for the medium base size.
A tip of my blogging hat to Residential Landscape Lighting & Design's blog for leading me to these. They have a very informative blog and even a new Forum for answering lighting questions. Very useful to bookmark.
The color temperature of these lamps is 2700-3000Kelvin.
Incandescent is 2800Kelvin.
You shouldn't even notice the difference.
Now everybody order some to swap out those energy-hog incandescents in your dining room and I'll do the same.
Peggy