Fronius, SMA and SolarEdge have ranked on top of the list for many years due to the low failure rates and great service as they usually ship replacement units in 3-5 business days. 4495155490381757243-blid-4715145372163472018

อ.เติ้ล หมอดูเศรษฐี | เลขเด่นรัฐบาลแม่น 15/ก.ค./2562

Fronius and SMA are available with 10 year warranties while SolarEdge offer a leading 12 year manufacturers warranty. Many of the lesser known 'value' brands will only repair a faulty unit if it is shipped to them (at the owner costs) and returned which often takes weeks and sometimes months.