1. Capacity                                    : 400 VA / 320W (2 Tubes + 2 Fans)
2. Output voltage                          : 220 ± 5%
3. Output Frequency                     : 50 Hz ± 2%
4. Output Wave from                    : Square
5. Back up time                              : 2 hours in full load.
6. Battery                                      : One 12V Navana 17 plate
7. Battery Box                               : One
8. Installation                                 : Free in Dhaka.
9. Warranty                                   : One year