Unverified82% confidenceTradeoffTime unknown
补光时长与强度需权衡：PPFD越高越促生长但耗电大且易灼伤叶片，观叶植物每天补光10-12小时（PPFD 100左右）优于短时强光；灯距叶片保持30-50cm避免烧叶
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82%
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Unverified衡量补光灯有效光合作用能力应看PPFD(光合光子通量密度)而非流明或功率，观叶植物需PPFD≥100μmol/㎡/s，开花结果类需≥300μmol/㎡/s，多数标注功率虚高的灯实际PPFD很低80% similarUnverified带定时器和分档调光(至少3档)的灯具优于常亮款：植物需12-16小时光照+黑暗周期，无定时功能需额外购买智能插座，长期忘关会导致植物无法进行呼吸作用而衰弱79% similarUnverified带补光灯的智能花架层间距需≥30cm，且灯具应可调高度，植物长高后灯距过近会灼伤叶片，过远则补光衰减（光强按距离平方反比递减）78% similarUnverified补光强度需看PPFD而非流明，桌面观叶植物需PPFD≥100μmol/㎡/s，多肉出状态需≥200，开花结果类需≥400；单看功率虚标严重，20W灯珠质量差可能不如8W好灯珠78% similarUnverified全光谱灯的PPFD（光合光子通量密度）比色温更关键，桌面叶菜需在冠层高度达到PPFD≥150μmol/m²/s，开花结果需≥400，只标注瓦数不标PPFD的产品参考价值低78% similar
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