... environment .3,NoseOulu nose is also made of Carbon fiber with some plastic combineThere is three SUS304 M4x10 hexagonal screw ,It ... N32 .5,ControllerOulu have a MPPT controller buit-in the body .It is a full Intelligent controller,Voltage rise,auto brake,autounloading,12 ... warranty ,There is english manual and quality cardin the packge ,With in 3 years after your purchase we offer spare part ...