Small portable electric generator 'inverter' type: recomendations sought

[notrub]

Hello again,  Thank you again, those who commented, on the welding etc. post.  Now I am trying to find a small generator and understand that an 'inverter' type is more efficient and desirable.  The small Honda generators i have seen run to 25,000+ baht or so and I would rather find something less costly.  Have had little luck on Lazada but have seen quite a selection at Global.  I don't know how to communicate about the inverter question, however.  Generator to be used for small hand tools, maybe a sludge pump and I will try out my new little welder too.  Weight is an important consideration as it would be used on the naa and have to be brought home every night by 1 person across rough ground.  All the youtube review and information sites are limited to US equipment not generally available here.  Any comments about makes, availability and just general information will be gratefully received.     Thank you very much in advance.