Lego City Mastermind Key Light. The LED Key Light provides just the assistance you need when you are trying to unlock a door in the dark. This cute Minifigure is small and light on your key ring. Just press it's chest plate for a burst of illumination and be on your way. At 2.75 inches, this pocket sized key chain is the brightest flashlight around. 2 super bright LED's emanate light through the feet of the LEGO Minifigurine, with posable arms and legs, you can shine the light anywhere you like.