1. Camera scanning (negatives), spectral lighting testing, Dynamic range tests
  2. Spectral analysis of different light sources

Spectrum 9

Comparison Cree 60w TW high CRI LED bulbs. The first one was delivered on Dec 2, 2014. The second one was delivered on June 30, 2015.

Both have a CRI that is greater than 92. The first one shows a characteristic neodymium notch (that reduces yellows) The newer once achieved high CRI without needing neodymium.
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Cree 60w TW soft white LED, delivered Jun 30, 2015
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Cree 60w TW soft white LED, delivered Jun 30, 2015

  • Dec 2014 Cree TW bulb on the left.  June 2015 Cree TW bulb on the right.
  • Cree 60w TW soft white LED, delivered Dec 2, 2014
  • Cree 60w TW soft white LED, delivered Dec 2, 2014
  • Cree 60w TW soft white LED, delivered Dec 2, 2014
  • Cree 60w TW soft white LED, delivered Jun 30, 2015
  • Cree 60w TW soft white LED, delivered Jun 30, 2015
  • Cree 60w TW soft white LED, delivered Jun 30, 2015
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