Unverified88% confidenceDecision RuleTime unknown
120cm的T8 LED灯管替换传统40W荧光灯，选18-22W即可达到等效甚至更高亮度（约2000-2200流明），无需追求30W以上高功率
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Unverified同样光通量下LED灯管功率约为传统荧光灯的40-50%：18W T8荧光灯可用9-10W LED替换，36W可用18-20W替换；选购按流明匹配而非按瓦数1:1替换，避免亮度不足92% similarUnverified标准LED灯管光效通常在100-130lm/W，优质产品可达140-160lm/W，同样亮度下高光效产品更省电85% similarUnverified看流明而非瓦数选灯，LED光效差异大：劣质灯80lm/W，优质灯120lm/W以上，同样30W实际亮度可差50%82% similarUnverified亮度看流明(lm)不看瓦数：LED约100-120lm/W，替换传统60W白炽灯选约800lm的LED（约8-9W），40W白炽灯约450lm对应5W LED82% similarUnverifiedLED灯泡实际亮度看流明(lm)而非瓦数，替换60W白炽灯需约800lm(约8-10W LED)，替换100W需约1600lm(约14-16W LED)，光效达标的LED应≥100lm/W80% similar
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