An icon of a outlined sun, used when increasing the brightness of a screen. Appears larger than the Low Brightness Symbol. Bright Button was http://emojipedia.org/high-brightness-symbol/

• Emitting or reflecting light readily or in large amounts

• Be bright by reflecting or casting light
• To bend back (light, etc.) from a surface.
• To reflect light.

• The luminous flux emitted in a given direction divided by the product of the projected area of the source element perpendicular to the direction and the solid angle containing that direction, i.e. luminous intensity divided by unit area; measured in stilbs or apostilbs
• The ability of emitting or reflecting light.
• The quality of being luminous; emitting or reflecting light
• A photometric measure
• A measure of the amount of light radiated by a given source, such as a computer display screen.
• Luminance is a photometric measure of the luminous intensity per unit area of light traveling in a given direction.
• A photometric measure of the density of luminous intensity in a given direction, measured in candela per square metre (cd/m 2).
• The amount of light that is emitted by a computer monitor or picture displayed on the monitor.
• The amount of light coming from an object.
• State of being luminous.
• The state of being luminous, or a luminous object; brilliance or radiance
• The star that is the source of light and heat for the planets in the solar system