I turned into a Fred pretty quickly by simply adding 2 “horns” to my helmet. The Topeak HeadLux was appealing because it was a simple way to add front and rear-facing lights to my helmet simply. The mount is pretty simple and mounted without issue. They aren’t overly heavy, but maybe a little noticeable. I prefer rechargeable, but instead they run on 2 pretty commonly available CR2032 batteries.
So far, they have been a pretty good setup. The forward-facing light has a nice side-benefit of letting me easily read my Garmin when I look down. My one knock on the HeadLux was that one light was being a little skiddish with a bad connection. I removed the batteries and re-attached the unit and it seemed to solve the problem. As far as visibility, the rear blinkers add a higher view flasher to my normal rear light. The forward facing light is bright enough that as I direct my head, drivers catch the light being shined their way. It may not look PRO, but it does the trick. A good add for my commute riding this winter.

Not a fan of button battery powered lights for daily commuting. They’re light, but those batteries are pricey and not rechargeable. I run Li-ion rechargeables with rechargeable AA/AAA lights as accessories or back-ups. I don’t like looking at a light and trying to make the trade-off of tossing a battery early vs lower visibility on a wet night ride home.
I do like the potential sidelight aspect of the HeadLux, so perhaps I could be converted.
By the way, when it comes to commuting in the dark and wet Pac Northwest, “PRO” means standing out from the background, like marinara on a white shirt. No TDF leader/follower cars protecting us from the motorists worried about getting home, getting to work, or getting to daycare before late charges kick in.