8,Over-voltage protection:higher than 16.5V closed,lower than 16V open
9,Under-voltage protection:lower than 6.5V closed,higher than 8.5Vopen
10,Short-circuit protection:auto protect 0.5 second after short-circuit
11,Open-circuit protection:auto protect 0.5 second after open-circuit
12,Negative direction protection:input voltage negative direction protection