Abstract: An LED specification system is provided having at least one LED light output device. The LED light output device has an LED light source, a first exchangeable face panel selectable from a plurality of potential exchangeable face panels, and a housing for locating the exchangeable face panel relative to the LED light source and for orienting the LED light source such that light from the LED light source passes through the first exchangeable face panel. The LED specification system further includes a user interface for selecting at least one preferred output characteristic for light from the LED light output device. The preferred output characteristic is defined by a metric value. The LED specification system further includes a transformation module for defining an LED specification value based at least partially on the defined metric value and a characteristic of the LED light source.

Abstract: A mobile media device case can include: (a) a first portion, the first portion comprising a first back wall and one or more first sidewalls, the first back wall and the one or more first sidewalls at least partially define a first interior of the first portion and a first exterior of the first portion, the first interior is configured to receive and partially cover at least a first part of the back section and the one or more side sections of the mobile media device; and (b) a second portion, the second portion comprising a second back wall and one or more second sidewalls, the second back wall and the one or more second sidewalls at least partially define a second interior of the second portion and a second exterior of the second portion. Other embodiments and related methods are also disclosed herein.

Abstract: In some embodiments, a mobile media device case can be configured to receive a mobile media device. The mobile media device comprising a back section and two or more side sections.

Abstract: An electric motor powered vehicle includes an energy reservoir provided by a battery-mass flywheel having a diameter approximating the lateral spacing of the vehicle's wheels. A The flywheel may include a pair of counter rotating wheels mounted on concentric shafts and may be enclosed in a containment device. A shoe-rail electrical connection facilitates transfer of current to and from the batteries. The flywheel may include fuel cells charged from a remote hydrogen source. Flywheel, and friction braking may be controlled by pedal movement. Motive power is preferentially provided by flywheel energy then battery energy. Energy may be transferred to the batter mass flywheel independently of vehicle motor drive. The motor-flywheel drive connections are made through inputs to a differential gear drive.

Abstract: An electric motor powered vehicle includes an energy reservoir provided by a battery-mass flywheel having a diameter approximately equal to the vehicle lateral wheel spacing, allowing a compact configuration. The flywheel may include a pair of counter rotating wheels mounted on concentric shafts and may be enclosed in a containment device. A shoe-rail electrical connection facilitates transfer of current to and from the batteries. The flywheel may include fuel cells charged from a remote hydrogen source. Flywheel, alternator and friction braking may be controlled by pedal movement. Energy may be transferred to the battery mass flywheel independently of vehicle motor drive. The motor-flywheel drive connections are made through inputs to a differential gear drive. The fuel cells may charge the batteries, and a second alternator may recover flywheel energy at vehicle shut-down.