Block Documentation - minecraft:light_emission
minecraft:light_emission
is an Integer
component that sets the amount of light this block will emit, in a range (0-15). A higher value means more light will be emitted.
Default Value of the Component
This component is specified as an Integer
. If this component is omitted, the default value for this component is 0 (emits no light).
Example
"minecraft:light_emission": 10