Joel Spira (businessman)

Joel Solon Spira (March 1, 1927 – April 8, 2015) was an American inventor, entrepreneur, and business magnate.

He invented a version of the light-dimmer switch for use in homes around the United States and led his Lutron Electronics Company into the production of lighting controllers.

单词	Lutron
释义	Lutron 原声例句 CNN 10 学生英语 2018年8月合集 The day Lutron Lua first saw McCain, he says he wanted to kill him. Lutron Lua第一次看到麦凯恩的时候，他试图杀死他。英语百科 Joel Spira (businessman) Joel Solon Spira (March 1, 1927 – April 8, 2015) was an American inventor, entrepreneur, and business magnate. He invented a version of the light-dimmer switch for use in homes around the United States and led his Lutron Electronics Company into the production of lighting controllers.
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