Pulse 42W power supplier, output voltage 13,8V. For IT equipment supply  like access point or routerboard stations. When grid supply is broken it is running on battery power. When grid supply come back - battery are recharged automatically.
Technical Specifications:

• AC input voltage:                       195~253V AC
• Input frequency:                         50~60Hz
  
• Output voltage:                           13,8V
• Output voltage regulation:          +/-1%
  
• Output current max.:                   3A
• Charging current:                         0.6A
  
• Overload protection:                   300% max current
  
• Efficiency:                                    70%
  
• Operating temperature:               0~ 45℃
• Size:                                            130mmx98mmx40mm
• Weight:                                        0.41Kg/pcs