Luminous eco watt sqaure wave 650va inverter is worst inverter.I brought this one for my home but shows many problem .It take long time to storage power in battery.And It doesn’t stands 8 hours as written in specification hardly it stands 4 to 4:30 hour time only .Many we faced power shortage to many electric gadget in our home because it was not charged well as our daily need electric gadgets and product like fan fridge etc.We faced very critical condition because of this rubies product and it is not user friendly thing we have a knowledge of electricity etc.So don’t buy this types of products.