inputs.text: great wire really made copper - ordered cadence 8 gauge wire trying several brands seem come way sooner cadence wire searches wanted real copper wire solar panel system work run lot spare time hobbyi tried stinger wire aluminum wire didnt come close needed specs tried buying cobra set 10 foot 4 gauge wire discover reviewers said made old used copper right could see blackened older copper wire strands middle actual wire whenever cut another piece itso kept using amazons search engine reading dozens hits finally found cadence brand wire point crimping terminals onto wires save money bought 20 feet black red 8 gauge cadence wire came cut trusted klein wire cutters yes copper way throughi made cables installed checking voltage levels found immediate improvement energy readings bought cadence brand 4 gauge blue power wire made battery connect wires used heavy duty xscorpion brand terminal rings another five hour search find switched old cobra wires new cadence wires line voltage loss improved almost 35so highly recommend brand wire also use xscorpion terminals best ones available tried six brands open cheap stinger ring terminals first bought threw outalso highly recommend audio savings company sells cadence wire deliver fast prompt good customer service really pack orders heavy duty boxes really recommend wire highly excellent quality hope retain quality long time