Specifications: Input Voltage: DC 12V Instructions: not included Heavy duty metal construction Help to dissipate excess voltage,prevent over-charging battery Efficiently improve charging capabilities Oversized heat sink fins design for maximum heat elimination Manufacturer Part Number: B043488 Please confirm the?Manufacturer Part Number?before purchasing. Fitment: For Aprilia RSV4 1000 Factory 2011-2017 For Aprilia RSV4 R 1000 2011-2015 For Aprilia RSV4 RF 1000 2015-2017 For Aprilia RSV4 1000 APRC Factory ABS 2013-2014 For Aprilia RSV4 1000 APRC R ABS 2013-2014 For Aprilia RSV4 1000 Racing Factory L.E 2015-2016 For Aprilia RSV4 1000RR 2015-2017 For Aprilia RSV 1000 Tuono V4 APRC ABS 2014 For Aprilia RSV 1000 Tuono V4 STD/APRC 2011 For Aprilia RSV 1100 Tuono V4 Factory 2015-2017 For Aprilia RSV 1100 Tuono V4 RR 2015-2017 For Aprilia Tuono V4 1000 2012-2015 Package Included: 1x Voltage Regulator Rectifier