I am new to applying solar and had a terrific experience with A1Solar. I requested six pcs of Q Cells 400W solar panels from them and supply was quick / customer support was wonderful! I look forward to purchasing from them yet again Sooner or later. ขอบคุณที่มา : กรมพัฒนาพลังงานทดแทนและอนุรักษ์พลังงาน A1 https://socialicus.com/story6130843/not-known-details-about-%E0%B8%82-%E0%B8%AD%E0%B8%84%E0%B8%A7%E0%B8%A3%E0%B8%A3-%E0%B8%81-%E0%B8%AD%E0%B8%99%E0%B8%95-%E0%B8%94%E0%B8%95-%E0%B8%87-solar-rooftop