1.High efficiency 2.Beautiful appearance 3.25 year quality quarantee 4.IEC61215,IEC61730,ISO,CE,TUV certified 250W solar panelscharacteristics:1. high-efficient and stable2. take the advantage of diodes to avoid hot-spot effect3. cells are embedded in a sheet of TPT and EVA4. 3.2mm, high transparency, low-iron tempered glass material5. attractive, stable, heavy duty anodized aluminum frames with ...