黑光灯

• 黑(black; dark color (depicting a face blackened by smoke and fire))ASSOCIATIVE

A face covered by smoke and fire symbolizes the dark black color.

• ⺌(small light radiating upward)ASSOCIATIVE
• 兀(standing person; upright person)ASSOCIATIVE

Light shining down from above a person standing upright creates the image of 光, meaning light.

• 火(fire)RADICAL
• 丁(nail; peg)PHONETIC

A lamp uses fire to shine brightly, and its sound reading is suggested by the component ding.