The Kömblinkin provides the light-show master with a way to have numerous strobe lights firing at random intervals with a minimal number of wires.
The Kömblinkin is a combination of an nRF24l01 radio that receives Komby transmissions along with a transistor array and a shift register in order to drive 16 different LEDs. When the Kömblinkin gets a signal on a channel specified in the sketch via the radio, it randomly lights up the 16 LEDs; when the signal stops, so does the blinking.
The Kömblinkin is designed to fit into a TA-200 enclosure, which are sold by the hobbyist sites DIYLEDExpress and Radiant Holidays. It requires 5v DC current, well regulated (if installed out-of-doors, do not use a wall wart).