This is a 4.7 Farad capacitor. This small cap can be charged up and then slowly dissapated running an entire system for hours. Combine two in series for 2.35F/5.4V. Do not over voltage or reverse polarize these capacitors.

It can be used in Electric toys wireless modems motor drivers portable terminals duplicators (rapid heating) car audios remote controllers (self-electric charging) AMR(Automatic Meter Reading) uninterruptible power supply(UPS) electric valves actuators wind velocity(pitch control) alarm/security devices