The Advanced license unlocks capabilities that are either disabled or severely limited in the Standard version: HPE iLO Advanced 90 Day Evaluation License for HPE Servers

: If you previously purchased a license but lost it, you can retrieve your registered keys by logging into the My HPE Software Center with your account credentials. Commonly Shared "Public" Keys

Real-time power capping and historical reporting. How to Get an iLO 4 Advanced License Key for Free