You might first wonder what's the point of a bike light lampshade, so consider the Sombra Bicycle Tail Light Diffuser for a moment. This two-wheeler attachment isn't intended to block the illumination of your frame-mounted LEDs, but rather to channel the intensity of the beam into a larger form with better visibility.
When all you've got is a tiny bulb beneath your bike seat, it's possible that you wouldn't be noticed by a car side-on. With Ofer Canfi's SombraCycle attachment, a glowing boxy object is rather more obvious to motorists at night, from a much broader range. The translucent PPLD sheet remains open at the rear, enabling the beam to project brightly when seen from behind. This bike light lampshade meets the need for enhanced bicycle safety as roads only get increasingly congested.