Quoted from thedarkknight77:an exclusive feature of the LE and should not be available to premium and pro owners
They should have made this a standard feature across all three versions. This feature costs ALMOST NOTHING to manufacture. Those LEDs are pennies, and the plastics cost virtually nothing. The PCB that drives this stuff probably costs around $2 or so to realize (in quantity). A replacement apron is probably the highest cost item in the kit ... the one that comes with the game becomes landfill material once the new one is installed (aprons cost virtually nothing in the quantities Stern buys).
I think they screwed the pooch doing this. If I were Stern, I'd put this add-on in all games that are shipped from this point forward and make things right with people that don't have this feature. This feature is way too tightly coupled to both the gameplay and the overall Stranger Things story. The person that came up with the idea for a kit like this needs to be fired.