Hmm I can ride in the woods with a 400 lumen Mk7 Joystick. It's overkill for the commute but has a nice gentle pulsing mode.
I tend to want at least as much light on the ground on road as off road, as you're typically going faster, and a pot hole that you'd barely notice on an MTB can easily cause an accident on a road bike.
I've also got a fluxient 3xXML thing that i got out for one day of commuting this year to prove a point to idiot drivers in Chorlton.
Well done. I'm sure you succeeded.