WebJun 28, 2024 · Now, an average bright day measures roughly 6000-10,000 lumens as perceived by humans, and that’s a tough number to match for most entertainment-focused projectors. But not impossible, thanks to the relativity of viewing conditions. The More Lumens the Better To project during full daylight outside you need more lumens, and we … WebAt the top of the atmosphere, sunlight is about 30% more intense, having about 8% ultraviolet (UV), [8] with most of the extra UV consisting of biologically damaging short-wave ultraviolet. [9] Direct sunlight has a …
Science with a Smartphone: Measure Light with Lux
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Overview Sun – NASA Solar System Exploration
WebOct 1, 2024 · The Sun’s Brightness. The sun puts out 93 lumens of visible light per square meter, as measured at the Earth’s surface. The sun produces light right across the spectrum of light, only some of which is visible light. Visible light is measured in lumens, and electricity is measured in wattage. WebIt also raises the question, how many lumens is the sun and how much is suitable for the human body. On the other hand, we use different types of light in regular usage. Every … WebJan 14, 2024 · From sunlight (at least six hours a day): High-light or full-sun plants need at least 60,000 lux Medium-light or partial sun plants need at least 35,000 lux Low-light or partial shade plants need at least 15,000 lux Very low-light plants or heavy shade plants need around 1000 to 5000 lux or less From an HPS lamp (at least 14 hours a day ): high density foam cutting machine