VIFLY ShortSaver 2 is electronic fuse that is the most reliable smoke stopper.. Completely cut off the current flow and prevent magic smoke, others only can limit not stop the current.. Super-fast protection time, turn off the power to a device within 3ms if there is short-circuit or over-current.. Power on-off switch can make the receiver binding much more convenient.. 1 Amp and 2 Amp threshold selector, 1A for small and sensitive build, 2A for large build, both XT60 and XT30 available.