A function key is a key on a computer or terminal keyboard which can be programmed so as to cause an operating system command interpreter or application program to perform certain actions, a form of soft key. On some keyboards/computers, function keys may have default actions, accessible on power-on.
Surge definition, a strong, wavelike, forward movement, rush, or sweep: the onward surge of an angry mob. See more.
Surge or Starting Wattage. Surge Wattage (a.k.a Peak Wattage) is the extra short term power required to start the appliance. Youâll have experienced this when say and old fridge started up and the lights dimmed or flickered slightly as it started up when it pulled extra power. This is often the case with sump pumps.