I can certainly say that I have noticed a difference with most drivers as they pass me. The battery holds a charge typically that will last about 6 hours. The light attaches on the seat post very easily and I feel confident that it will be there when my ride is over. Good job Knog!
Perfect tail light for me. Plenty bright for my urban commute and I only need to recharge it once a week or so. And this thing is amazingly waterproof. Friend told me it would work underwater, so I turned it on and put it in a pint glass. It looked cool so I left it in there blinking for a whole day, no problem. Maybe I should get a hobby...
I can hear the drivers ease off the gas as they approach. Im not saying it will save my life but it does contribute to visibility and most drivers have more time to consider their passing options on narrow mountain highway climbs.
I recently purchased the Knog Blinder Road R70 Tail Light, unfortunately the unit I received was defective and I'm waiting for a replacement. Hopefully the new one will work as advertised.