The RADBOT 500 has one directive: to defend you and your bike from rear collisions. It comes equipped with a precision reflector that conforms to strict EU standards and its blazing red eye contains a 0.5 watt Japanese LED to stare down vehicles. Also, the RADBOT 500 can fix flat tires. Actually that last part isn't true.
*By popular demand, new RADBOTs feature a switch that must be held for 1.5 seconds to turn the light on/off. This prevents the RADBOT from being accidentally turned on in your pocket or bag when not in use.