光笔 Traditional form: 光筆 Pinyin (reading): guāngbǐ Definitions: light pen Characters: 光 - light; bright, brilliant; only, merely 笔 - pen, pencil, writing brush; to compose, to write; Hanzi stroke Traditional characters: 光 - light; bright, brilliant; only, merely 筆 - pen, pencil, writing brush; to compose, to write; Hanzi stroke