Elent Electronics Pvt. Ltd. Offers Offline Uninterruptible Power Supply-UPS with Input Voltage 155-275V. Elent Electronics Pvt. Ltd. Is an ISO 9001:2000 registered organization that supplies different types of power conditioning equipment like On-line Uninterruptible Power Supplies, Off-line & Line Interactive UPS, Constant Voltage Transformers and Servo Voltage Transformers. The Offline Uninterruptible Power Supply-UPS with Input Voltage 155-275V of E-Series protect computers by providing only regulated AC mains voltage. The Offline UPS has various models to provide back-up power stretching from 10 minutes to 4 hours depending on the connected external battery bank.