Lum's a sweet, innocent, faithful, and good-natured girl, but she can also get jealous and get hot-tempered.

Lum is shown to be a very beautiful and voluptuous young woman with blue eyes and cyan shoulder length hair. Like all of her kind she has sharp teeth, pointy ears and small yellow horns.

For her everyday attire she wears a strapless yellow tiger striped bikini with matching boots.

She can be able to fly, can generate massive electrical discharges usually from her hands it’s so powerful they are considered to have the raw energy of lighting, Lum is also extremely smart and be able to store big amounts of electricity in her body.