Radiance

"Radiance" refers to light or a collection of light, usually a bright, dazzling glow from a certain light source. It can be strong light from a light source such as the sun, lamps, stars, or bright light produced by reflection, refraction, or emission of light from certain objects. It often gives people a dazzling, brilliant, and mysterious feeling, and is often used to describe the brilliant effect of light or the bright glow around an object.