Is this Busch & Müller "Eyc 42/6V" the voltage range?

[speedub.nate]

I have this 7 year old B+M Lumotec headlight and on the side I thought it was indicating Eyc 42 model that runs on 6 volts.

Now after websearching I'm not positive but am thinking I'm mistaken, that this is an Eyc model indicating it is good for 6V to 42V.

I initially installed this on a Shimano E6000 motor that had 6v headlight output, now looking to install it on an E6100 that Shimano has changed to 12v light output.

 

[RunForTheHills]

It's 6-42V: https://www.peterwhitecycles.com/b&m_e-bike.php

 

[speedub.nate]

Thanks @RunForTheHills .

I found my receipt from SJS, April 2020

"Busch & Muller Lumotec IQ2 Eyc E 50 Lux E-Bike Headlight" Doesn't say "IQ" anywhere on the light housing so thought that was a newer model.

The non-conventional order on which they print 42/6 is on the housing is a little frustrating. It didn't help that they had some 6v specific E-bike lights during that time.