CTL PNL DH/RAD ALT H-L 5V BLK 071-01517-0100CP 470 Control Panel | 5VThe CP 470 is the control panel for the ED 462 electronic display units for the EFS 40 and EFS 50 Electronic Horizontal Situational Indicator (EHSI) systems.This CP 470 (Alternate Part# 01517-0100) is a 5 volt version.Product Codes..