Offline UPS is offline uninterruptible power supply , also called backup UPS . standby UPS ,  Line interactive UPS or PC UPS ,Which can supply power to the electronic adviced of electrical equipments when their power fail to work or to be abnormal , most of them used in supporting server , computing equipment as computers or some testing system .


1) Automatic voltage regulation
2)Wide input range option
3) High /low voltage protection
4) Overload /Short portection
5)Cool start computer even there is no main power
6) Colored LED display