Unverified82% confidenceTradeoffTime unknown
无级调光(旋钮/触控连续调节)比分档调光更能精细匹配氛围,但结构更复杂、故障率略高且价格更贵;单纯应急照明用分档(如高/中/低三档)足够可靠
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82%
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Long-term
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