Hello friends, This battery invetor is used in my house. It works properly and make a big backup when light is gone. The battery of luminous is always good and work properl. This is average product that used in my home. This invetor is worm so nicely. The durability of this Invertor is good and work a backup of electricity very huge. This luminous is working properly and work effective way. This battery is user friendly and easy to work. And the switch and other option is work effective way.