▁Las er ▁Ch orus ▁and ▁Data flash . ▁Las er ▁Ch orus ▁was ▁a ▁multiple - head ▁las er ▁system ▁with ▁ 4 . 9 - mill iw att ▁gas ▁las er ▁tub es ▁available ▁in ▁red , ▁yellow , ▁green , ▁and ▁orange . ▁The ▁heads ▁were ▁controlled ▁by ▁a ▁micro processor - based ▁controller ▁and ▁they ▁were ▁capable ▁of ▁producing ▁effects ▁such ▁as ▁t unn els , ▁plan es , ▁and ▁various ▁other ▁geometric ▁shapes ▁and ▁patterns . ▁Because ▁they ▁were ▁not ▁over ▁ 5 ▁mill iw att s ▁they ▁were ▁Class ▁III A ▁las ers ▁and ▁did ▁not ▁require ▁a ▁variance ▁to ▁operate ▁in ▁most ▁states ▁in ▁the ▁U . S . ▁ ▁Data flash ▁was ▁a ▁multi - head , ▁micro processor - control led ▁stro be ▁system ▁with ▁DM X 5 1 2 ▁control . ▁It ▁was ▁used ▁on ▁high - profile ▁t ours , ▁including ▁the ▁Michael ▁Jackson ▁D anger ous ▁tour , ▁as ▁well ▁as ▁in ▁night cl ubs . ▁ ▁Int ell abe am ▁launched ▁▁ ▁Int ell abe am ▁autom ated ▁light ▁was ▁introduced ▁in ▁ 1 9 8 9 . ▁Until ▁that ▁time , ▁most ▁autom ated ▁light ing ▁in ▁the ▁live ▁event ▁production ▁industry ▁were ▁r ented , ▁and ▁Vari - L ite ▁domin ated ▁the ▁concert ▁and ▁tour ing ▁market . ▁This ▁allowed ▁production ▁companies ▁to ▁buy ▁their ▁own ▁autom ated ▁light ing ▁and ▁rent ▁them ▁for ▁concert ▁t ours ▁and ▁corpor ate ▁events . ▁ ▁Later ▁years ▁▁ ▁In ▁