WordNet sense 1 (an alert and refreshed state):

freshness

WordNet sense 2 (the phenomenon of light emission by a body as its temperature is raised):

incandescence

WordNet sense 3 (the amount of electromagnetic radiation leaving or arriving at a point on a surface):

glowing, radiance

WordNet sense 4 (light from nonthermal sources):

luminescence

WordNet sense 5 (an appearance of reflected light):

gleam, lambency, gleaming

WordNet sense 6 (shine intensely, as if with heat):

burn

WordNet sense 7 (have a complexion with a strong bright color, such as red or pink):

beam, radiate, shine