is there a diference between generators ?

I think the inverter bit means that it has an inverter built in to convert the output current from a modified sine wave to pure sine wave so sensitive electronics won't be damaged. I could be wrong but no doubt one of the more knowledgeable members will chip in and give you the right answer.

Inverter style generators generate Direct Current (DC) electricity, the inverter changes that to Frequency and voltage controlled Sine Wave 240 volt Alternating Current (AC) power.

The Kipor is an inverter generator. I have one and it does everything I need for about 1/2 to 2/3rd price of a Honda. Don't know much about the Kulkyne. But I'd make sure whatever you buy will do the job you want it to do.

Have a look at post 104636 for a discussion on cheaper gennies.

Yes, there are a number of differences...

As mentioned, inverter simply changes DC to AC. Your household appliances are 240 volt AC. Inverters also allow for more control which allows the genny to make what is called a pure sine wave. You don't really need to understand exactly what that means other than it is better...

However, say you have a none inverter genny. It makes 240 volts, but that just means average. So at times it might make 200 volts and other times it might make 280 volts. Putting an inverter into the mix allows 240 volts steady.

Ignore the KVA figures...They are a little misleading. It means volt amps or kilo volt amps...What you should ask and look for is actual watts.

The last main difference is 2 stoke or four stroke... Again, you do not need to understand the working of the two...2 stoke is when you have to mix oil with the petrol and 4 stroke uses straight petrol.

2 stroke is slightly lighter in weight, but needs more maintenance and can be noisier than 4 stroke. 4 stroke is slightly heavier but runs quieter and needs less maintenance.

Allein - The major thing to keep in mind when buying a genset, is what is most important to you.

Low noise?
Low fuel consumption?
Low price?
Spares availability?
Servicing availability?
Reliability?
Light duty or heavy duty?

There are lots of Chinese gensets available. They're all built to a price level. Many claim to be identical to good brands. Most are copies of the "name brands". Sales speak such as "inverter generator", doesn't translate into a superior product.
If you buy a Chinese genset online, you rarely get any parts availability or servicing ability.

They have low resale value because their purchase price is low, and because they're basically unrepairable when they cease to function.
Chinese gensets often make claims about their output, that are not matched in actual use.
Chinese wiring usually has poorer insulation quality - and assembly is done by people with low levels of skill.
Quality control is often poor, leading to "hit-and-miss" levels of finish and reliability.

Many Chinese gensets won't supply consistent levels of voltage, which is a crucial requirement for many voltage-sensitive items.
The Chinese gensets often have poor engine speed control, leading to fluctuating voltage under load.
Seriously-fluctuating voltage output will damage many sensitive electrical items - that is, those with electronic components.

If you buy a "name brand" genset, you get parts availability, repairability, reliability, servicing ability, and quality control in the build process.
The importance of quality gensets is that "name brand" gensets will have good engine speed control and supply consistent levels of voltage under load.

Many people are happy with Chinese gensets because they do the low-requirements job they need done at low cost - and they're happy to scrap the unit when it dies.
If you're looking at long-term use, and have sensitive items that need consistent voltage - and you like to be able to repair the genset if it goes wrong - then buy a brand name genset.

You only need inverter generator if you are after pure sine wave output. Depending on what you are running. Pure sine wave is better but whether the better part apply to you depends on what you run. If you run rough appliances like tools etc then pure sine wave or square wave wouldn't make difference. There are people who claim running square wave will damage laptop's battery and appliances that have a motor built in. That is it will reduce their lifetime. However, I haven't found a solid proof to that as yet. It might just be another term made out by major branding company and now it seems like a must have.
As for chinese generator, I think Kipor is the biggest brand generator produced from China. It does seem like their reputation had gotten better lately but I still don't think they are worth that money. Wouldn't even go Kulkyne, not much feedback of that product in the market and they even cost more than kipor. I don't understand how.