Jackyled, this is a 10 pack of lightbulb sockets, great when you need to get your bulbs to fit in different sized sockets.  This is  E17 to a E26 sized sockets.  These work great, now my LED light bulbs can fit into my ceiling fans.  These are very simple to use, just take you lightbulb and twist in the new socket, then place in the socket, which mine was the ceiling fan lights.  I am very happy with how great these worked and my bulbs fit perfectly.  These are well made, and the company has a great web site you can visit.   Thank you for allowing me to try your product . Disclosure: I received this product at a discount in exchange for my honest  and unbiased review.  I have no affiliation with this company.

http://www.amazon.com/dp/B01AUMI2YI

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