Review on Leviton GFNL1 W R02 Gfnl1 00W Self Test Receptacle: Advanced Electrical Safety at your Fingertips! by Dwayne Pore

I don't know who the engineer/designer of these sockets was but he should be fired immediately! The actual outlet is very good in almost every way. The glaring problem with these GFCI sockets is that when placed side by side, the light from one turns off the light from the other. The engineer who designed this positioned the light sensor to be mounted on the edge of an electrical outlet, looking both to the side and straight ahead. So when he sees his neighbor's light, it goes out. A good engineer would just have the light sensor facing forward and install the sensor toward the center of the outlet. I have sockets and switches that are closer to the center and they work fine. A typical light sensor is the size of a pinhole plus its electronics. However, the output is good. I hate defensive junk that makes connecting something a chore. The LEDs are bright, so you won't need them in any room where light-sensitive sleepers live. I have these in the kitchen and bathroom as the light doesn't disturb my sleep. I don't regret buying them for the price I paid. They may be a bit overpriced now, but they work well.