The Green mode of the SMX750 allows it to bypass unused electrical devices during good conditions to create high efficiency without reducing any protection. The Smart-UPS protects connected loads from surges, spikes, lightning, and other power disturbances up to 645 Joules. The audible alarm actively lets you know if the battery is low or if there is an overload condition. The UPS can automatically start up the connected equipment upon the return of utility power to reduce maintenance time.