Nichia STSE-CW2159A 4.PACKAGING The LEDs are packed in cardboard boxes after packaging in anti-electrostatic bags. According to the total delivery amount, cardboard boxes will be used to protect the LEDs from mechanical shocks during transportation. Please refer to figure’s page. The label on the minimum packing unit bag shows; Part Number, Lot Number, Ranking, Quantity The boxes are not water resistant and therefore must be kept away from water and moisture. 5.LOT NUMBER The first six digits number shows lot number. The lot number is composed of the following characters; "#$$$$ -!% " -Year ( 1 for 2001, 2 for 2002 ) # -Month ( 1 for Jan., 9 for Sep., A for Oct., $$$$ -Nichia's Product Number ! -Ranking by Color Coordinates % -Ranking by Luminous Intensity -2-B for Nov.)