April 19 (SeeNews) - Bulgarian lighting equipment retailer Svetlina [BUL:3LX] said on Friday that its majority owner - diversified group Synergon Holding [BUL:6S7], has submitted a corrected buyout offer for the remaining 42% stake in the company it does not own, priced at 5.5 levs ($3.2/2.8 euro) per share.