发光 (fā guāng)

to emit light; to shine; to glow; to glisten; to be luminous

Character breakdown

发 (fā) · 5 strokes

Simplified form of both 發 (send out) and 髮 (hair). Visually similar to 犮, the bottom component of 髮.
光 (guāng) · 6 strokes

Pictograph of fire on top of a person.