UPS for computers and audio and video equipment Complete protection: discharge, overload, short-circuit, thermal protection Supply button / LED indicators: provides a visual and audible indication of the UPS status Reset push-button for the circuit-breaker: for resetting in the event that the overload protection is activated Automatic start-up: when there is no mains supply or it is of poor quality, the UPS continues working using a battery and switches off if the network breaking time exceeds the back-up time