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On the origin of the LED lamp – Product Evolution
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Remember the Light Bulb? LEDs are Sending the Bulb's Classic Shape the Way of the LP | GE News
LEDs Then vs Now - Daisy Energy
When LED Lights Were Invented? A Brief History Of LED Lighting - LED & Lighting Info
Hong Kong inventor develops LED bulb that's cheaper, brighter and longer-lasting | South China Morning Post
LED Bulb - Lighting History, LED History | TCP Lighting
Cheering for LED Bulbs? Read This Cautionary Tale About the Phoebus Cartel - Bloomberg
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Who invented the light bulb? | Bricsys Blog
Who invented the LED? | Nick Holonyak, Jr.
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The L.E.D. Quandary: Why There's No Such Thing as “Built to Last” | The New Yorker