For me, brake lights for bikes are kind of silly anyway. It's not expected by the cars, so when they see it come on, it will NOT register to them that it's a brake light, so it'll be basically useless.
Besides, I run a Dinotte 140L even in daylight. I doubt anyone would even notice the brake light with that running. And even if it were wired up to a brake switch, would car drivers know that when it switched from slow strobe to steady on, that it mean I was braking?
Bottom line is that it's up to the cyclist to brake safely, and that means making sure that there isn't a car doesn't run you over, because they're going to be there and doing something stupid regardless of what lights you run.
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Work: the 8 hours that separates bike rides.