Bhai dono side say agar ap 12v day b dain tu koi problem nahi hota balkay achi baat hay. But wires negative or positive dhiyan say lagana chahiay ulti nahi honi chahiay 2nd side
12 volt light tu hr aik inches k baad cut kr saktay us per nishaan hotay. Agar 220 volt light ho tu us main 1meter k baad nishan hota us say pehlay cut krain gay tu meter zae ho jata on nahi ho ga. Or 220volt light neon sign main use nahi ho sakti kun k cutting option nahi each inch per