Light-emitting devices, and related components, systems and methods are disclosed. In an embodiment, the system includes: a mobile computer and radio on a load-handing vehicle; sensors on the vehicle to determine the ground location and orientation of the vehicle; encoders that determine the position of a lifting mechanism relative to a chassis of the vehicle; and a base computer and radio that communicates with the vehicle. User data is received to write to the tape medium. The time period is different for different ones of the frequency band signals. A method of making the light weight pad is also disclosed. The first set of control signals is configured to provide a first cycle-conduction angle relative to the zero-crossings of the respective phase EMF voltages of the machine to produce a sufficiently high level of torque during start of the machine.