Then I found a pocket inverter that would convert Volt Dc to Volt AC and hooked that up to the wires coming from the drill. 전압계를 사용하여 페달을 밟는 속도를 조절하여 전압을 볼트로 유지할 수 있었습니다. We then turned on the inverter and powered a lightbulb as a test.