[問題] led亮度不一樣?
買了幾顆led要接(滿大顆的那種)
老闆跟我講電壓是3V,所以我就串兩顆電池
但是我電路接好以後,發現有的超亮,有的很暗
有的甚至亮都不給我亮一下
這是led本身的問題嗎?
不過我一顆一顆試還是一樣耶 有的亮到刺眼 有的...orz
如果是led的問題,可以拿回去換嗎
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