This  Electronic Load for DC and AC has some remarkable Features:
 
 Input voltage up to 400V
 Load current up to 10A
 Power dissipation up to 200W
 Remote controllable via (isolated USB interface)
 Suitable for DC and AC
 7-segment displays for VRMS and ARMS

After publishing this project in Elektor issue Sept./Okt. 2021
you can find the (updated) documents in the attachments.