This is in the way of a rant, but I am posting it here as it relates to education and to encourage you educators to do a better job. I recently bought a well-known manufacturer’s LED light bulb at a home center. I was curious to know the spectral output of the bulb, so I emailed customer service. I know generally how these white light LED curves look (so you needn't bother to show me) but the specific coating on the bulb could affect the output and I thought this would be a simple request. To my astonishment, they replied that their R&D department said this is proprietary information and not available. I politely pointed out that the output of the light is there for anyone to measure so it cannot be considered proprietary. They only doubled down on their answer. Granted the front line customer service rep probably did not have a technical background, but it was disappointing to see how resistant to logic she was.