Unverified80% confidenceTradeoffTime unknown
上下双向出光的壁灯（洗墙效果）能拉伸墙面视觉高度，适合层高偏低的空间；纯向下出光更聚焦，适合功能性照明
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80%
Confidence
Long-term
Relevance
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Unverified上下双向出光的壁灯（洗墙灯）适合走廊和背景墙营造氛围，但单侧向上出光的壁灯在层高＜2.6m时会在天花板形成明显光斑，层高不足慎选纯上照款89% similarUnverified上下双向出光的壁灯（洗墙效果）适合客厅电视墙、沙发墙做氛围照明，光线打在墙面漫反射不刺眼；单向下照适合功能性阅读照明87% similarUnverified上下双向出光的壁灯营造墙面光晕氛围但直接照度低，不适合作为阅读主光源；单向下照/可调灯头款照度集中更适合功能照明86% similarUnverified上下双向出光的壁灯能同时照亮墙面上下形成对称光柱，适合走廊营造层次感；单向下照适合阅读，单向上照适合柔和氛围86% similarUnverified上下双向出光的壁灯营造氛围感强但整体照度不足，向下单向出光实用性高但墙面上方易显暗，兼顾照明与氛围需选带独立漫射灯罩的款式86% similar
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