What are the advantages of LED finishers?
A LED medals contain the amount of tiny LEDs requested by the customer, which are powered by a button battery on the back of the medal. A tiny switch next to the battery turns the lights on and off. Rare and very impressive, it's a real "I have to share this" category when someone receives a medal like this.
References
Without being exhaustive, here are some of our partners for whom we have already produced:
English 
Hungarian 
German 
Slovak