Sinewave Cycles Beacon 2

This may be an almost perfect light Sinewave Cycles has put together, with only one minor caveat. It boasts a steady light, even at low speeds, but the most interesting (and possibly unique?) feature is its integrated USB charger.  Plug your phone or whatnot into the USB port and you're charging.  The switch on the back governs the priority afforded to charging, i.e. how much power from your dynamo is going into keeping the light on vs how much is going into your attached device. The barrel plug on the back is for connecting an external cache battery.  The light will prioritize the  dynamo input but at low speeds or when you are stopped, the light will dip into the attached cache battery, meaning that you will always be getting a nice, steady output. Caveat (only one I'm seeing at the moment) is that the light provides a symmetrical beam pattern.  Most dynamo lights out there contain mirrors that produce an asymmetrical beam, which disperses the light in a thoughtful pattern downwards