... +2 receivers+ 70M cables Item DC60 is one kind of high-power firing system. The output voltage is 110v. The power of ... the waterfall and large scale fireworks display.The whole system is composed of one main machine, 2 receivers and 70m cables. It ... districts B, C, D, E, and F with the same way.6. After testing, please move to the“Fire”position. And ...