ADP 12VDC/19VDC Power Adapters Delta Electronics ADP 12VDC and 19VDC Power Adapters are designed to protect against over-voltage, overloads, over-temperature, and short circuits. The ADP adapters offer Energy Star Compliance (Level VI), IT safety approvals, and 100k hours of MTBF. The ADP 19VDC adapters also provide a low leakage current.