Airbursts are designed to be suspended in a lighting truss that is at least 6m (small airburst), 8-10m(medium) to 10-12m(large airburst) above the ground. They produce a ball shaped flash with sparks. There is very little smoke. Sold with an electric match installed, standard lead length is 72". Also available on harness (3 pc/3 circuit drop) with an RJ 11 Connector with wire lengths of 24”/42”/60”.