凯: Triumphant song, a victorious return. It metaphorically signifies exceptional ability leading to certain success.
灿: The original meaning is brilliance, radiance, vividness, and dazzling splendor. When used in personal names, it conveys the connotations of being open and upright, with a bright and promising future.
Meaning: Kai symbolizes victory and success, while Can represents brilliance and brightness, implying a glorious career and a bright future.