This is cool. The Revolights system consists of four rings of LEDs, 2 white & 2 red, weather resistant, powered by USB-rechargeable lithium ion batteries,
bracket-mounted to the front and rear hub. A built-in accelerometer tracks speed and flashes the red lights as you slow down, bicycle brake light, $200.
My questions are how long does a battery charge last, and how long do the batteries themselves last. The aggravation and expense could be a deal breaker.
But a virtual brake light, now that's cool.. till the cop says, you didn't even try to stop for that light.
