Tattoo Power unit 1. MCU control 2.Low price 3.Advacned digital technology 4.Auto-restart capability 5.Audibel alarm 6.Intelligent battary charger 7.Overload prortection 8.Extended run time 9.Low noise. Contact us if you need more details on Power Supply Unit. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Tattoo Power、Ground Power Unit. If these products fail to match your need, please contact us and we would like to provide relevant information.