Uhlobo A lwe-potassium perchlorate lusetyenziswa kwisikhokelo se-fireworks kunye ne-firecrackers, kwaye iileyile ezivelisiweyo zinesiphumo esicothayo sesantya.Zingasetyenziselwa ukuvelisa izikhokelo ze-90 ukuya kwi-130 imizuzwana ngemitha nganye, kwaye kwisandi somlilo, isandi somlilo esiveliswayo sineempawu zobude obude kunye nesandi esimnandi.Isenokuvelisa nezinye izandi ezingaqhelekanga.Xa zisetyenziswa kumbala weefireworks, iifireworks eziveliswayo zinemibala eqaqambileyo, ngakumbi kukukhanya okumfusa, ukukhanya okuluhlaza okwesibhakabhaka, kunye nokukhanya okubomvu, kunye neziphumo ezicacileyo.