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Mathematics 10 Online
OpenStudy (anonymous):

what type of light bulbs use phosphors

OpenStudy (ja1):

\(WELCOME~TO~OPENSTUDY\) You posted a science question in the math section, please close this and re-post in the science group so you may be better assisted :) Also read this so you may learn how to use this site :) http://openstudy.com/code-of-conduct \(Happy~OpenStudying~-JA1\)

OpenStudy (ja1):

@josh1415

OpenStudy (anonymous):

LEDS and fluorescent

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