DIN EN 63013:2015-12

This draft is applicable to LED packages. It specifies procedures and conditions (criteria) for measuring and projecting the long-term luminous flux maintenance behaviour of LED packages based on limited luminous flux maintenance test data. The measurement method is based on the procedure of LM-80. The long-term projection is based on the exponential-fit-function procedure of TM-21, and gives an alternative Border Function procedure in the case that the exponential-fit-function of TM-21 is not applicable.