Firman ECO4990ES – is a cost effective generator for your home or small business. Firman ECO4990ES- is a value for money. Though the generator is model 4990. It is not 4kva generator. It is rated at 3kva and a recommended maximum load of 3kva. So this 3kva generator would be able to power your fans, bulbs, 1 TV, 1 Home theatre, Fridge or Freezer,1HP or 1.5HP Inverter Air Conditioner. It is important to load generators cautiously to prevent overload.