... the machine quickly into the normal operating mode. Support key switch machine, timer switch machines, delay shutdown. • 8-36V DC voltage input ... SD cards, each with maximum support 32G, loop video, automatic switching, data is automatically coveredReplay Maximum support 4-ch synchronization ... , can also be set to delay the shutdown. 2, timer switch machine Input DC:+8V ~ +36V Output Voltage +12V,2A ...