Yves, great, thank you!!!
i will try to test...

Thank you Dale! some of test with ies light at sketchucation - http://www.sketchucation.com/forums/scf/viewtopic.php?f=15&t=9596 i got nice results with BdirMLT...because it normally supports black evironment I tried with no-bdir types, but sky(illumation) was visible...need more night-dak evironmen...