A new and distinct variety of rose plant of the Floribunda Class is provided which abundantly forms attractive very double starkly brilliant white blossoms that well retain their coloration upon maturity. The switch unit is configured to form a first signal transfer path for transferring the test signal to the first IP block at the normal mode and to form a second signal transfer path for transferring the test signal to the second IP block at the power saving mode. The reflected and transmitted short duration radiation beams are manipulated either in the frequency domain or are distinctly polarized such that they are directed to the appropriate area sensors. The electrical structure including a temperature sensor configured to monitor temperature near the set position and further including an electronic identification code corresponding to the set position of the sensor along the axis. A second mullion receiving element extends from the first mullion receiving element for tensioned engagement with a first lateral mullion surface of opposingly paired lateral mullion surfaces adjacent the mullion face.