... solar controller 2,1 year warranty 3,PWM Control KM-5A, 10A, 15A,20A,30A light control+time control, the three time periods with ... that the entire solar street lighting system was normal.When the second work period set 0h (h), the controller finds that ... electronic protection against reverse polarity, with TVS lighting protection, no jumpers designed to improve system reliability durability.9, all the ...