Thanks to gas excitations, both crackling lightning and brilliantly colored exploding fireworks can send chills up your spine and cause your heart to beat faster.

While the vivid white light we associate with lightning is an example of incandescence, with a temperature in the order of 30,000 K, its colors also stem from gas excitations - light emitted through the excitation of gas molecules in the atmosphere. Gas excitations are a form of luminescence, photons of light being emitted as excited electrons drop back to their initial energy state. Unlike incandescence, luminescence may occur at low temperatures.

Likewise, pyrotechnic experts use incandescence to create brilliant white fireworks, but rely on the phenomenon of gas excitation to create the dance of colors we expect from fireworks. In addition, neon, mercury, and sodium lights take advantage of gas excitations.

https://www.webexhibits.org/causesofcolor/4.html