Power bus for powering electronic devices operating in retail environments

A method for providing electrical power to a device at a structure for displaying products, said method comprising:

• coupling an elongated member to the structure, the elongated member operable to support a device and to supply electrical power to the device;
• engaging a coupling member to the elongated member, the coupling member operable to support the device;
• and
• moving the coupling member from a first position to a second position along the elongated member to reposition the device with respect to the structure.

A system for providing electrical power to a device at a structure for displaying products, said system comprising:

• means for (i) supporting a device and (ii) supplying electrical power to the device, said means for supporting and supplying coupled to the structure;
• means for coupling said means to the structure;
• and
• means for coupling the device to said means for supporting and supplying, said means for coupling operable to be moved from a first position to a second position along said means for supporting and supplying to reposition the device with respect to the structure.