The device 8, wherein the selected cross fading level is fifty percent of {HEAD ~ the available power} to {TAIL ~ the first lighting source} and fifty percent of the available power to the second lighting source 
to
The device 8 , wherein the selected cross fading level is fifty percent of { HEAD ~ the available power } to { TAIL ~ the first lighting source } and fifty percent of the available power to the second lighting source
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH