Block Documentation - minecraft:light_dampening
minecraft:light_dampening
is an Integer
component that sets the amount that light will be dampened when it passes through the block, in a range (0-15). Higher value means the light will be dampened more.
Default Value of the Component
This component is specified as an Integer
. If this component is omitted, the default value for this component is 15
(a full block that doesn't let any light through).
Example
"minecraft:light_dampening": 7