Webinars are a bit of a lottery, but I came across an excellent one from National Semiconductor.
It is about white power LEDs, and includes a fair amount of detail on colour rendering.
Most of the information is generic, although Lumileds - a sponsor of the webinar - is the only LED maker featured.
I particularly liked the bit explaining why green leaves look grey when illuminated by 'white' light made using a balance of red, green and blue LEDs.
Go to www.national.com/nationaltv
Select Driving High-Power LEDs Without Getting Burned - Part 1
There is a bit of signing-on involved.
Part 2 is also pretty good.
'Alice'
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