خليج تنبيه اشرب ماء 2000 foot candles to lumens أفضلية متعدد الأغراض سطح المظهر الخارجي
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Light and lighting . irect b) Hame arc lamps. THE ILLUMINATING ENGINEER (april) 215 the long centre line, it can be taken withsufficient approximation that the fluxover one half of the floor
Conversion – PPFD to Foot-candles – Hort Americas
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Why is luminosity for light bulbs now labeled in Lumens rather than foot- candles or candle power? Don't foot-candles correlate with square feet making it much easier to choose? - Quora
Commercial Lighting 101: What is a Foot-Candle? - FSG Electric & Lighting
Commercial Lighting 101: What is a Foot-Candle? - FSG Electric & Lighting
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