... for up to 10 seconds and therefore supplies the load with constant voltage during monetary power surges . This ... appliances .VERSATILE FOR USE INShops ,homes ,restaurants, offices. actories ( Single phase) etc.TECHNICAL PARAMETERSRate voltage : 90-250 VAC. 50HZ / ... Single phase modelUse one POWER STAR saver for every Watts .INSTALLATION PROCEDURE-Plug this device into a wall socket, not an extension ...