The ultimate charging system. 450 Watts output, brushless permanent magnet rotor makes brushes obsolete and the Combined Voltage Regulator / Rectifier eliminates the two most vulnerable failure items of the BOSCH system, the diode board and voltage regulator. ************* This is the Rolls Royce of charging systems. *********** Supplied with all cables and wires required and with a detailed installation instruction booklet.**************All parts carry a one year guarantee. ***** PLEASE NOTE THIS IS NOT RECOMMENDED FOR USE WITH LITHIUM OR DRY CELL BATTERIES *****