© Copyright 2026 Eastman Auto & Power Ltd. All Rights Reserved.
700 va - 2000 va
Range
Square Wave
Waveform
4
Years Warranty*
*T&C Apply
RELIABILITY
Handles higher load comfortably even when multiple appliances start together - without tripping, shutting down, or missing a beat.
Keeps electricity available in extreme low-voltage situations, reducing chances of complete blackout.
Switchover happens so fast that your lights, fans, and Wi-Fi never flicker — not even for a split second.
TOTAL COST OF OWNERSHIP
Stable operation in real Indian conditions, reducing chances of breakdowns or damage during voltage fluctuations.
Battery always stays in the safe zone - neither deep discharge nor overcharging — it performs better and lasts much longer.
Keeps the system stable during changeover and voltage fluctuations, improving battery life and providing smooth/ noiseless operation.
Value-for-Money Backup for Everyday Loads
Confident Performance on Heavy Start-Ups
Protection Against Indian Voltage Swings
Longer Life, Lower Running Cost
4-Year Warranty Assurance
Homes
Small Retail Shops
Coaching Centers
Small Workshops
Farmhouses
Low-Voltage Rural Homes
The Sigma Series is a square wave home UPS built for everyday Indian homes, available from 700 VA to 2000 VA. It delivers efficient backup with faster charging, wide voltage tolerance and enhanced protection.
Choose a model based on the running and starting loads of the appliances you want to power. Use our load calculator to estimate your requirements.
Square wave inverters provide economical backup for compatible everyday appliances. Check appliance requirements and choose a capacity that supports the connected load.
The Sigma Series supports a wide AC voltage range and includes lightning protection to help it operate in fluctuating supply conditions. Follow the installation and earthing requirements for your model.
Zero Volt Pickup supports recovery after deep discharge. Available backup still depends on the battery charge and condition.
Fast static changeover helps reduce interruptions when mains power fails. Equipment requirements and the connected load determine actual performance.
Battery protection helps prevent deep discharge and overcharging, supporting battery performance and service life.
The Sigma Series is shown with a 4-year (48-month*) warranty. Contact Eastman for the terms applicable to your model.
Fill the enquiry form or call us on:
78728 78728