NIST develops new LED test procedure

[comozo]

A temperature-controlled heat sink makes LED tests compatible with existing methods used in conventional lighting.

Currently, LED makers and the lighting industry are poles apart in their approaches to metrology, and this lack of a common method has hindered the commercial uptake of solid-state lighting.

more http://optics.org/cws/article/industry/36937;jsessionid=E49C3BD5BF167345D6CFF558ED56E332

 

[StarHalo]

Not sure how much color/tint difference you're going to get with a 50-degree temp change, just a wee bit less output, but as long as this speeds production of household LED lights..

So let's incorporate the variable-temp sink into a flashlight, run the sink at -80F and the batteries at 120F, and we'll finally have resistance-free nirvana.. And you'd only need a car battery to power the whole thing