These are great. I live in an old house with no electrical outlets outside. There are so many times that I have to run an extension cord through a window to plug something in outside, weather it's for a radio, or a vacuum to clean my car, or anything else.
With these, all I need is a light bulb socket. I have a porch light. I just screw one of these in like I would a bulb, and it not only still gives a spot for a bulb but also two electrical outlets. It's great. This comes with a 2 pack. They are easy to use. They work very well. They screw in easily and it's easy to plug in anything you need. This comes in handy for Christmas lights. I was very :happy to get these.You can find these on Amazon Here.
I received this product for free for my honest unbiased review.