Yeah it tests various christmas lights and fuses. When we first bought our house I went all out on Christmas lights for outside the house and every year bulbs that worked the year before when they were put up would somehow stop working over the summer so i bought this to help fix the stuff. That...
You can use a tiny flathead but the tool makes it a lot easier and faster to do if you need to do a bunch of them which sometimes I need to do for custom PC builds.
Its a male/female 4 pin molex connector extraction tool.
Heres a quick video on how it works. This guy is bashing the "Cheap $8 amazon tool" but hes trying to use it on automotive molex connectors instead of PC molex connectors. Might not work properly on automotive molex connectors but it...