A voltage control and conservation system is provided, which includes three subsystems, including an energy delivery system, an energy control system and an energy regulation system. In each of the color separators, absorption color filters and transmission color filters are combined. Each time the security system propagates a decryption key, it includes as part of the decryption key an identifier indicating the identity of a sender’s key. A second dielectric stressor element having a horizontally extending upper surface extends below a second portion of the active semiconductor region, such as a southeast portion of the active semiconductor region. The linkage enables the width and the depth of the walker to be reduced to a very small space and telescoping legs reduce the height dimension of the walker.