V -4 is a super spark machine, equipped with stainless steel panel structure. It produces a fantastic, non-hazardous effect that looks like traditional fireworks or pyrotechnics. The height of spark effect can be adjusted to 10 meters. It is convenient to use with 700 gram powder tank capacity. It is perfect for large performances, large launch event, music festivals and other outdoor scenes.（Hereby declare that the spark machine series products produced by DJPOWER (Guangzhou DJPOWER Electronic Technology Co., Ltd.), models: V-1, V-2, V-3, V-4, V-5, V-6, do not involve any patent infringement issues.）