Blue PHOLEDs: Final color of efficient OLEDs finally viable in lighting - Michigan Engineering News
Duke Energy Wants to Repair Discolored Streetlights. But What If Residents Want to Keep Them? - INDY Week
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Only a handful of purple streetlights remain on Wisconsin interstates
Virginia Beach bioluminescence: What's lighting up the water? - CSMonitor.com
Amazon.com: Blue Lights
Christmas Llights Indoor, Window Lights, LED Srting Lights for Room, Bedroom - Walmart.com
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75 Years of Innovation: LED, first blue-light emitting diode - SRI
Tattle Tale Lights: Have you noticed blue lights showing up in your area? | ABC4 Utah
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Philadelphia Zoo lights up blue to thank frontline workers - WHYY
Thank you coronavirus helpers: Chicago skyline lit up blue for frontline workers amid COVID-19 pandemic - ABC7 Chicago
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LightItBlue: Landmarks Lit in Support of Essential Workers During Coronavirus Pandemic – NBC 7 San Diego
Blue lights are special to honor medical workers
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My favourite Nobel prize: the blue LED that lights up the modern world – Physics World
