UDI U817 U817C U817A U818A RC Quadcopter Anti-Clockwise Motor U817-04 Package Included: 1 x Main Motor Brand Name: UDI Usage: spare part for UDI U817 U817c U817A U818A RC Quadcopter, red light Item No.: U817-04/U817C Item Name: U817 U817c Main Motor red LED