Mars Posted October 7, 2017 Share Posted October 7, 2017 It could be nice to learn the experience of people who repaired inverters. I only saw Voltronic inverters. For KS , MKS series i know there are copy makers in China looks like Voltronic but actually fake. ( Not talkin about OEM brands like MPP , Mecer , Effekta etc which are actually Voltronic inside ) Is there anyone saw/use those copy inverters , compare interior components , compare software , compare quality etc ? For example Must Power : http://www.mustups.com/high-frequency-solar-inverter-pv1800-series/ Any idea ? Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted October 7, 2017 Share Posted October 7, 2017 https://www.youtube.com/watch?v=UFaDvUOeIgo Quote Link to comment Share on other sites More sharing options...
Mars Posted October 7, 2017 Author Share Posted October 7, 2017 Wow , was not expecting that quick and precise answer. Thank you. Did you open inverter and check components.For example Voltronic`s new Mosfets are Toshiba and this one is same or lower quality ? Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted October 7, 2017 Share Posted October 7, 2017 No it was still under guarantee. Unit had serious DC ripple so returned the unit. Quote Link to comment Share on other sites More sharing options...
___ Posted October 7, 2017 Share Posted October 7, 2017 4 hours ago, cem said: For example Must Power : One has to be careful to distinguish between authorised rebadged units (such as the Mecer), and copied units. The MUST unit is an unauthorised copy. There is a statement to that effect on the voltronic website. Quote Link to comment Share on other sites More sharing options...
chris81964 Posted October 23, 2017 Share Posted October 23, 2017 On 10/7/2017 at 11:08 AM, cem said: It could be nice to learn the experience of people who repaired inverters. I only saw Voltronic inverters. For KS , MKS series i know there are copy makers in China looks like Voltronic but actually fake. ( Not talkin about OEM brands like MPP , Mecer , Effekta etc which are actually Voltronic inside ) Is there anyone saw/use those copy inverters , compare interior components , compare software , compare quality etc ? For example Must Power : http://www.mustups.com/high-frequency-solar-inverter-pv1800-series/ Any idea ? Must inverters we purchased failed within 6 months, Avoid them. The case looks a bit different and the components don't look as robust Chris Hobson 1 Quote Link to comment Share on other sites More sharing options...
saif1985 Posted December 6, 2017 Share Posted December 6, 2017 i used must hybrid inverter . i found more reliable against voltronics . must power use parts is high rating like voltronic use 3307 fet and must use 9505 fet. Chris Hobson 1 Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted December 6, 2017 Share Posted December 6, 2017 10 hours ago, saif1985 said: i used must hybrid inverter . i found more reliable against voltronics . must power use parts is high rating like voltronic use 3307 fet and must use 9505 fet. Ok good to know. What is the origin of Must? Quote Link to comment Share on other sites More sharing options...
___ Posted December 6, 2017 Share Posted December 6, 2017 21 minutes ago, Chris Hobson said: What is the origin of Must? I think Must is PRC (people's republic of China), Voltronic is ROC (Republic of China, aka Taiwan). There is some dispute about them being separate states ... :-) Quote Link to comment Share on other sites More sharing options...
Mars Posted December 6, 2017 Author Share Posted December 6, 2017 Chris , Voltronic Taiwan origin but Both Made in China. More in detail both in Guangdong , both in Shenzhen , even both factory in the same street . Voltronic is the original producer of Infini series following to Axpert series , Must was a big factory focused on transformer EP series. Then Must copied Axpert series. There are very low quality copy makers but we learned that Must is the best quality replica so far. ___ and Chris Hobson 2 Quote Link to comment Share on other sites More sharing options...
___ Posted December 6, 2017 Share Posted December 6, 2017 Must must have improved then since last time... a few years ago they were rubbish :-) Chris Hobson 1 Quote Link to comment Share on other sites More sharing options...
Mars Posted December 6, 2017 Author Share Posted December 6, 2017 Must is not good. At least not for Axpert series. If you will see ( hope you will not ) the low quality copy makers , you will understand why i called Must best replica. ___ 1 Quote Link to comment Share on other sites More sharing options...
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