For SM003 SM007 SM002 harness we provide 3 wire
1 wire is black with pin, is connect to battery negative
1 wire is red with fuse and pin，is connec to battery positive
1 wire is red only wire, is connect to ACC wire
For SM002S and SM002H harness
these 2 harness is design for Lead-acid battery motorcycle, if you are using lithium battery please contact us
1s wire is red with fuse is connect to battery positive part
2nd wire is blue battery negative part
3th is yellow small wire ( no need connect, this is backup wire)
4th is red small wire for SM002H, it's coonect to horn wire, to make horn strobe function
For SM002D harness
Red wire with fuse connect with battery positive part
Black wire connect to negative part
Small 3 wire
Red wire connect it to ACC wire.
Green wire is high beam wire connect to pass light positive wire
Black is horn strobe wire, connect to horn wire.
