โ†‘๋ ˆํŠธ๋กœ USB LED ํ•„๋ผ๋ฉ˜ํŠธ ํ„ฐ์น˜ ๋””๋ฐ ์ „๊ตฌ 5V ๋ ˆํŠธ๋กœ LED ์—๋””์Šจ ์ „๊ตฌ ๋ฌด๋“œ๋“ฑ ์บ ํ•‘์šฉ ๋ฐฑ์—ด๋“ฑ ์žฅ์‹ LED ์กฐ๋ช… - TopDealBox