0000032878-00-000002 10-Q 2 19991231 20000214 ENERGY CONVERSION DEVICES INC 0000032878 3690 381749884 DE 0630 10-Q 34 001-08403 540510 1675 W MAPLE RD TROY MI 48084 8102801900 ENERGY CONVERSION LABORATORIES INC 19710603 10-Q 1 000003287800000002-001-seq1-10-q.txt DECEMBER 31, 1999 EX-27 2 000003287800000002-002-seq2-ex-27.txt 12/31/99 FDS