... ×268mmThird,operating instructions1,product Picture Positive back 2,Panel Description2.Positive 12.back operating instructions3.5.1 ... 10A DC power supply).3.5.2 power Output - plug load equipment first, open the output switch 1, ... 2,power output light. Warning: Be sure to plug in the load Equipment, or they may cause ... the UPS and then it can be work ,plug all the load equipment then switch on the output ...