UpBright New Global DC 9V AC / DC Adapter For Casio LK-93TV CTK-519 CTK-900 CTK-531 LK93TV CTK519 CTK900 CTK531 Piano Keyboard World Wide Use Power Supply Cord Cable Wall Charger Mains PSU World Wide Input Voltage 100-240VAC 50/60Hz OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) Tested Units. In Great Working Condition UpBright 30 days money back guarantee. 1 full year service warranty