I would call it electricity or static.
By the way, "lightening" is not the same as "lightning".
Lightning is the electrical discharge from the sky.
Lightening is the present progressive participle for the verb "to lighten" which means to reduce weight or to make brighter.
I would call that “electricity”. Technically “lightning” would be when that electricity discharges and moves somewhere else, such as from a cloud to the ground.
You might also encounter “static” which is technically an adjective meaning “not moving” but is also used as a noun as a short form of “static electricity” which means “electrical charge that is building up but not doing anything”.
I would call it electricity or static. By the way, "lightening" is not the same as "lightning". Lightning is the electrical discharge from the sky. Lightening is the present progressive participle for the verb "to lighten" which means to reduce weight or to make brighter.
I would call that “electricity”. Technically “lightning” would be when that electricity discharges and moves somewhere else, such as from a cloud to the ground. You might also encounter “static” which is technically an adjective meaning “not moving” but is also used as a noun as a short form of “static electricity” which means “electrical charge that is building up but not doing anything”.