I would have to suggest that the driver's voltage safety cutoff to be bumped up to 15 volts. Being that I work on cars for a living, and many cars will have a sitting voltage of about 12.3-12.6, cranking voltage of about 8.5-9.5 volts, and running voltage (diesels included) from 12.6-14.5.....
i have a tool, that is a data logger that records amperage and voltage on vehicles during all driving conditions, and have LOTS of files...... I have never seen a voltage level over 20v, even as a spike.
amperage is a different story. When starting I have seen over 500 amps, and when recovering from the start event, 220 amps.
i would LOVE to buy a few of these, as I have been looking for some LED drivers to make a spot light for my pig hunting escapades.....