Not sure if this belongs here but am too lazy to think about it further. Curiosity generated by another IPCT member's
post led me to find this while surfing
amazon however I'm certain they can be found elsewhere.
IMO, this is a dangerous product. It can lead a person to thinking they are safely plugging in a 3 prong male plug when in fact their device will NOT be grounded...there is only a hot and a neutral in that lamp socket, no ground. I know this from 50 years of hands-on electrical work of all facets but how many people out there don't know this?
And even if you are plugging in a 2 prong plug that is polarized (one blade larger than the other) there are additional variables that can impose danger depending on how the lamp socket AND the device being plugged into it is wired.
The threaded, screw-in lamp shell is supposed to be connected to neutral and the center button on a lamp is supposed to be connected to hot and if the lamp is controlled by a switch it's the hot that is supposed to be opened and closed by the switch. The problem with the screw-in adapter is this: do you know that the lamp socket is properly wired?
And if you plug in a 2 prong, polarized plug are you confident that the neutral is on the wide blade and the hot is on the narrow blade as it should be?
If backed into a corner and I had to use this adapter I would only plug in a double-insulated device, like a small electric drill or sander, that has a 2 prong polarized plug.