Review on ⚡ Enhanced Safety with BindMaster Grounded Single Adapter Indicator for Industrial Electrical by Tim Rushing

I couldn't connect a two prong cord to it at all and it took a while for the three prong plug to almost force the plug into the unit. After that it works fine. I wanted it to be used primarily for two pole items like lamps so I had to find something else to do it. The switch also glows, which some people might prefer, but I like having fewer distractions around me. For three-wire grounded cables, this should be fine, but not great.