I bought Utl Sun Pack invertor last month and due to this invertor my electricity bill is increased by 1000 rupees.As it consume more electricity as compare to other invertor.The design of this invertor is looking awesome with LED light.Its require 170* 220 voltage which is high and frequency range is 50Hz * 50Hz.Its wieght is normal( maximum 8kg) .Its can't take all the loads of home appliances like it discharge within minute when I pluged my cooler.Customer care service is also not good as service provider didn't came home to fix my problem as complaint many time.