... : reverse polarity protection, open circuit protection;2.Waterproof test: passed the simulation test of water spray and soak test3.Salt mist test ... cover, and fit in the product. The black wire is connected with the ignition wire, and the red one to the earth wire. It is ... )Shipping ways:UPS,DHL,FEDEX,TNT,BY SEA, will choose the best and cheapest one.Payment: T/T, Western Union,Cash ...