in accordance with an embodiment of the present invention strong violet blue lines 72 are seen in the 405 450 nm range due to the gallium in the lamp along with ir lines 74 at 852nm and 894 nm due to the cesium a lamp produced to the above specifications by lamptech ltd ashkelon israel gave optical power density on the skin when installed in system 20 over 30 mw cm 2 in the violet blue and ir bands together 0042 fig5 is a schematic pictorial illustration of a system 80 for phototherapy in accordance with another embodiment of the present invention system 80 in this embodiment shown in another treatment application u2014 treating skin inflammation on a face 82 of a patient u2014 but is otherwise functionally similar to system 20 radiators 84 and 86 in this case comprise panels with multiple miniature solid state emitters such as light emmitting diodes leds mounted on the panels the emitters may be organized in a single dimensional or a two dimensional diode matrix array as in system 20 both of radiators 84 and 86 typically emit radiation in both the violet blue and near ir bands alternatively one of the radiators may emit violet blue radiation while the other emits ir either simultaneously or in succession greater or smaller numbers of radiators may be used as a further alternative one or the radiators may comprise an array of miniature emitters and the other may comprise a gas discharge lamp as described above or a single radiator may comprise both a matrix.