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์ž๋™์ฐจ ์‹ค๋‚ด์— ๋น„์–ธํŠธ๋ฌด๋“œ๋žจํ”„ํŠœ๋‹ ๋ฐ ๋‹ค์–‘ํ•œ LED ์ž‘์—…์„ ์ „๋ฌธ์œผ๋กœ ํ•˜๋Š” ์•„์ง€ํŠธ์ž…๋‹ˆ๋‹ค ๋งค์žฅ ์œ„์น˜๋Š” ๊น€ํฌ์‹œ ํ†ต์ง„