lightning; CL:道[dao4]
闪 · 5 strokes
Simplified form of 閃. Depicts a person (人) peeking through the space in the middle of a door (门). Based on the original meaning "peek". The meaning later shifted to "dodge" and "flash".
电 · 5 strokes
Simplified form of 電, which depicts lightning (申) during a rainstorm (雨). The 雨 component was deleted for simplification.