Taiwanese package manufacturer Unity Opto consolidated revenue for December was NT $455 million (US $15.1 million), a drop of 14.13 percent from November. Total revenue for 2013 reached NT $69.2 billion, a dip of 8.39 percent from 2012. Slack season and client stocktaking at the end of the year impacted December shipments. LED bulb order volumes doubled at the end of the year, due to new clients preordering mobile applications starting in 4Q13 and favoritism from European and U.S. markets.