Solar MPPT Controller100A Solar Charger Controller 12V 24V 36V 48V Support WiFi or GPRS MPPT

Competitors often use low-efficiency cells without Flash and EL testing, leading to cracks and fire risks. We perform 3 EL tests and 2 Flash tests to ensure quality and avoid hidden defects.

We accept 30% advance and 70% before shipment, third-party inspection, LC at sight, and STS payment via Made-in-China. For some countries, we accept payment against bill of lading copy.

Yes, we cooperate with third-party companies like BV and SGS for on-site testing. For orders exceeding two containers, we cover the inspection cost.

We provide warranty and flash test reports with barcodes. During the warranty period, submit claim sheets with these documents to receive after-sales service.

Cheap Tier 1 panels are often fake or from unqualified traders lacking export authorization. They may face confiscation, lack warranty, and have reduced power due to poor storage.