Arrived within the agreed deadline. I have been using Bleboxes for about 10 years. I am satisfied with them, but they have poor undervoltage protection (due to voltage fluctuations in the network, 4 of my units were destroyed by too low voltage - if I am not mistaken, the voltage was 70V and the Blebox turned on and off for about 2 hours - about 5,000 on and off cycles). Unfortunately, after fixing the network error, they no longer connected to the network, even after trying to reset to factory settings.
Additionally, they get very hot.
So now I will add protection against under/over voltage, where possible. They are current protected according to the manufacturer's instructions.