弧光灯 Traditional form: 弧光燈 Pinyin (reading): húguāngdēng Definitions: arc lamp Characters: 弧 - arc, crescent; wooden bow 光 - light; bright, brilliant; only, merely 灯 - lamp, lantern, light Traditional characters: 弧 - arc, crescent; wooden bow 光 - light; bright, brilliant; only, merely 燈 - lamp, lantern, light