- Dec 9, 2007
Very interesting, dave. When you say efficient do you mean in terms of the ratio of light energy out vs power in? if so, how are you testing that? do you have some data you can share?I have been through MANY of these diodes now. I am convinced that they are the same diode. However, the arrays are binned for output. That means that there are more higher efficiency diodes in the 140 array than there are in the 130 array. For your extra $2 you are increasing the odds that you will get a higher efficeincy diode from a 140.