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LED

尋日我見有架Benz E class 裝左一排led尾牌燈, 好奇怪, 佢有光仲好光, 射眼咁光, 不過個牌都係好暗, 夜晚睇唔清.
乜LED有方向性嘅咩?

有! Highly directional that need good lens / reflection design for good light intensity distribution.

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