With after-sales guarantee Support Bluetooth/WIFI communication Fan cooling solar charge controller mppt
After-Sale Warranty1.Factory Warranty1.5 years warranty for PWM solar controller, 3 years warranty for air cooling MPPT solar controller, and 2 year warranty for TD F series fan cooling MPPT solar controller.2.Factory CommitmentWe promise that the solar controllers produced by our company are full power, no fake marks.We promise that never use old components, "Fake one, Fine 100,000RMB".3.Worry-free After SalesDuring the warranty period, non-artificial product failures occur, our company promises to replace new one for free.After “three-step confirmation " to quickly identify.