A troubleshooter's best friend! For those pesky times when you are trying to locate a ground in your GI lighting or an errant blob of solder has deiced to continuously blow your solenoid power fuse. You could go through a bucket of overpriced fuses. Better yet, get a high quality re-settable fuse that will last a lifetime. Simply remove the blown fuse and clip in this unit and troubleshoot away. If it blows, simply press the reset button and continue on. Works on any manufacturer of pinball or arcade game. Comes in five amp ratings. Each unit is high quality and built to last with protection up to 250vac and 50vdc. The leads are 18GA and 24" long so you can work it with the play field down or the back box closed. No more lifting the play field to replace a fuse over and over again. Best use is for troubleshooting only. Not intended to be permanent.