Its a tough call... The black icon in the middle kind of looks like the profile of Abraham Lincolns face on a penny. It might be cool to actually see a salt lamp used there.
Other than that, #11 is my favorite or #3 if your targeting an older demographic.
#9. No doubts about it.
The font and sharp text makes it more professional.
Also, that blue text in the other logos doesn't match with the green background.
I don't think any of them actually capture the essence of your product. All they've done is combine different fonts with silhouettes of one of your salt lamps. None of them actually really speaks to the warmth of your product.
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