Thank you, didn’t know that. Is that a technology widespread in the automotive world? I fully understand how that would influence generator size, wire gage and so forth.It saves power. If the H7 lamp has greater persistence (is slow) then feeding it the slowest possible modulated signal (lowest on in the duty cycle) without having it dim would save you some amount of power, perhaps a lot. It all comes down to duty cycle. Why it would be important to save that power is probably a different discussion.