Forum:Level retuner and Level Conversion Lab

When you activated level conversion lab on a level 8 blue-eye white dragon in you hand and role a 4, blue-eye white dragon become a level 4 in you hand for this turn if you summon it it stays a level 4 for this turn if you activated level retuner this turn and change the level 4 blue-eye white dragon to a level 2 would it stay level 2 when you end you turn?