Output overvoltage

Product Discussion BLUETTI Elite & EB Series
1

I noticed, almost by accident, after connecting an LED lamp that had burned out. When I measured the output voltage with both an analog and digital tester, it was around 410 volts.
Is it most likely a fault, or do you think it could be a software issue? I strongly doubt the latter.

model EB3A 268W - 220V

2

@ros2elc
Once the machine exceeds its rated output power, it should report an error and shut down the output. It will not continue to output and burn out your light bulb.
Can you provide relevant pictures or screenshots so that the team @BLUETTI_CARE can better help you troubleshoot the problem?