White LEDs fail to match hype
12/10/2011
As an exhibition designer and lighting specifier I have been a keen advocate of white LED lighting in exhibitions, but recently I have had to reconsider this decision. There is an urgent need for the white LED lighting industry to develop a more transparent and meaningful framework for the specification and performance rating of white LED-based lamps.
If this is not done then I believe that many of the developmental gains of the last few years may be squandered as users are put off by the poor performance of some products.
High failure rates and very rapid phosphor degradation ...