hi just completed a small project
. i ended up using the wire i purchased from home depot(from batteries
to controller and from controller to the panels
own wire which was about 2 feet long only) i have realized the solar panels
own wire was stranded and i guess called tinned. my wire is also stranded but the strands are not as thin as the other one. To be exact its 20 thin wire making a 10 gauge which was the recommended size
my panel:Renogy Eclipse 100W 100 Watts Mono Solar Panel 12V Volt for RV Boat Battery | eBay
my controller is 30 amp .
wire i used: Southwire (By-the-Foot) 10 Black Stranded THHN-22973299 - The Home Depot
everything is powered up and seems to be working but i am not sure if i would have probem with voltage etc. stuff that i don't have deep knowledge. It took me whole day so i really hope that i don't have to rewire everythg. thanks in advance.