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Warning - Five Star Mono 545W panels

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One of my friends purchased some of these panels of Facebook Market place.

https://www.facebook.com/marketplace/item/196771955752493

Surprisingly (not), they don't produce even close to 545W panels, they measure 2094mm x 1038mm. Producing 545Watts would make them 25% efficient which would be a new record for solar panels. Most current panels produce 20-21.5% efficiency with the record at 22.8% I believe. 

My guess is that these are probably  +-350-400Watt panels probably B-grade panels that have just had a new label put on them.

 

May be an image of ‎text that says '‎ی Firesrar Electrical Characteristics at STC(1000W/m², AM1. 25°C) 540W Maximum Power(Pmax) 42.0V Maximum Power Voltage(Vmp) Maximum Power Cunt(mp) 12.86A Open Circult Voltage(Voc) 49.8V Short Circull Current(sc) 13.70å Maximum System Voltage 1000V 15A Maximum Series Fuse Operating Temperature -40Cto+90°C Application Class Class Dimension 1038 > 90% after ears > 80% after 26 years Years service Warning importan read he Installation and operation manual before Instaling perating servicing hìs solar panels.D not connect or disconnect hile system under load current.Not following these Instructions may result severe fatal Injurles. CE MADE IN CHINA‎'‎

 

 

Edited by Sc00bs

I have seen these type of panels at various China towns and don’t understand why people buy them. Their prices are not much cheaper than a good reputable brand. As soon as you look at them, you will see bad quality workmanship. And at best the seller will offer 6 months warranty vs 10-12 years warranty from a good brand. 
 

Why would anyone be so stupid to buy these??? 🙄

never can unserstand why people buy unfamiliar stuff like panels, batteries, etc, why not stick to familiar and well known brands

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