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틀린 말은 아니다. 100W 백열전구를 27W짜리 LED가 대체하고, 그 수명에서도 비교할 수 없는 차이를 보이고...star.ohmynews.com 2024-07-10
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이 제작소의 사명은 시바우라로 바뀌고 일본 최초의 백열전구를 만든 도쿄전기와 합치면서 두 기업의 앞글자를 따 도시...www.segye.com 2023-12-21
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안녕하세요, 반갑습니다. 여러분의 전기기술교육의 동반자 다산에듀 대표 전병칠입니다. 여러 조명기구 중 가정에서 소켓형으로 많이 ...youtube 2023-08-16
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