I like to say about Microtek digital inverter is a very good device.My personal experiance with Microtek inverter is very good.I used this inverter in last 8 months.I buy this inverter at 14 thousand.This inverter is give backup about 13 hours at countinuos used.I used this inverter for watch TV, 3Light bulbs, two fans, A freez this type of uses in this inveter.Best battery backup safe and easy to use.I reccomend this inverter.