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	<id>https://seinc.org/mediawiki/index.php?action=history&amp;feed=atom&amp;title=Light_Measurements</id>
	<title>Light Measurements - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://seinc.org/mediawiki/index.php?action=history&amp;feed=atom&amp;title=Light_Measurements"/>
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	<updated>2026-04-07T06:51:18Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://seinc.org/mediawiki/index.php?title=Light_Measurements&amp;diff=657&amp;oldid=prev</id>
		<title>WikiAdmin: Created page with &quot;Different spells will affect light in various ways. Harath uses Lux to determine the amount of light that something generates. 1 Lux is equivalent to 1 sq meter of light. The...&quot;</title>
		<link rel="alternate" type="text/html" href="https://seinc.org/mediawiki/index.php?title=Light_Measurements&amp;diff=657&amp;oldid=prev"/>
		<updated>2020-12-28T16:48:55Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;Different spells will affect light in various ways. Harath uses Lux to determine the amount of light that something generates. 1 Lux is equivalent to 1 sq meter of light. The...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Different spells will affect light in various ways. Harath uses Lux to determine the amount of light that something generates. 1 Lux is equivalent to 1 sq meter of light. The following chart gives some common values generated by the formula = 10&amp;lt;sup&amp;gt;(Mana/20)&amp;lt;/sup&amp;gt;:&lt;br /&gt;
==Lighting Values==&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
! Power&lt;br /&gt;
! Lux&lt;br /&gt;
! Indoor Scale (3m distant)&lt;br /&gt;
! Outdoor Scale&lt;br /&gt;
! Spaces&lt;br /&gt;
! Visibility&lt;br /&gt;
|-&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 0&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Total Darkness&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 9 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 0.00001&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Near Total Darkness&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 8 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 0.0005&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Moonless, cloud covered night&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 7 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 0.002&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Starlight, no moon&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 6 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 0.01&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Starlight, 1/4 moon&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 5 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 0.05&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Moon below Half&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 4 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 0.2&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Moon above Half&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 3 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| 1&lt;br /&gt;
| 1.12&lt;br /&gt;
| Candle&lt;br /&gt;
| Deep Twilight&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| 2 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| 5&lt;br /&gt;
| 1.78&lt;br /&gt;
| Nightlight&lt;br /&gt;
| Late twilight on a cloudy day (6:30 PM Feb in VA)&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| +5 Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 10&lt;br /&gt;
| 3.16&lt;br /&gt;
| Alarm Clock&lt;br /&gt;
| Early twilight on a clear day (6:30PM Feb in VA)&lt;br /&gt;
| Residential Walkway&lt;br /&gt;
| +4 Hide in Shadows; 1 penalty to visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| 15&lt;br /&gt;
| 5.62&lt;br /&gt;
| Nightlight&lt;br /&gt;
| Pedestrian walkway&lt;br /&gt;
| Pedestrian walkway&lt;br /&gt;
| +3 Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 20&lt;br /&gt;
| 10.00&lt;br /&gt;
| 15 watt incandescent bulb&lt;br /&gt;
| Well lit street at night&lt;br /&gt;
| Commercial Walkway&lt;br /&gt;
| +2 Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 25&lt;br /&gt;
| 17.78&lt;br /&gt;
| 25 watt incandescent bulb&lt;br /&gt;
| Parking Deck Lighting&lt;br /&gt;
| Street Intersection&lt;br /&gt;
| +1 Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 30&lt;br /&gt;
| 31.62&lt;br /&gt;
| 30 watt incandescent bulb&lt;br /&gt;
| Sun on a clear day (1810 Feb in VA)&lt;br /&gt;
| Sidewalk&lt;br /&gt;
| Min reading&lt;br /&gt;
|-&lt;br /&gt;
| 35&lt;br /&gt;
| 56.23&lt;br /&gt;
| 40 watt incandescent bulb&lt;br /&gt;
| Pump Island at Gas Station&lt;br /&gt;
| Stairs, Ramps&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
|-&lt;br /&gt;
| 40&lt;br /&gt;
| 100.00&lt;br /&gt;
| 60 watt incandescent bulb&lt;br /&gt;
| Very Dark Overcast Day&lt;br /&gt;
| w/in 3 m of ATM&lt;br /&gt;
| Casual Seeing&lt;br /&gt;
|-&lt;br /&gt;
| 45&lt;br /&gt;
| 177.83&lt;br /&gt;
| 100 watt incandescent bulb&lt;br /&gt;
| Sun on a clear day (0640 Feb in VA)&lt;br /&gt;
| Outdoor merchandise display&lt;br /&gt;
| Some perception of details&lt;br /&gt;
|-&lt;br /&gt;
| 50&lt;br /&gt;
| 316.23&lt;br /&gt;
| 150 watt incandescent bulb&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Classrooms&lt;br /&gt;
| Moderately easy visual tasks; Reading&lt;br /&gt;
|-&lt;br /&gt;
| 55&lt;br /&gt;
| 562.34&lt;br /&gt;
| 60 watt Fluorescent light bulb&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Office Building&lt;br /&gt;
| Moderately difficult visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| 60&lt;br /&gt;
| 1,000.00&lt;br /&gt;
| Computer Projector&lt;br /&gt;
| Overcast Day&lt;br /&gt;
| Treatment Rooms&lt;br /&gt;
| Very difficult visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| 65&lt;br /&gt;
| 1,778.28&lt;br /&gt;
| Studio Lighting&lt;br /&gt;
| Stadium Lighting&lt;br /&gt;
| TV Studio&lt;br /&gt;
| Extremely difficult visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| 70&lt;br /&gt;
| 3,162.28&lt;br /&gt;
| Dental Lighting&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Dental Office&lt;br /&gt;
| Exceptionally difficult visual tasks&lt;br /&gt;
|-&lt;br /&gt;
| 75&lt;br /&gt;
| 5,623.41&lt;br /&gt;
| Grow Lighting&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Dental Office&lt;br /&gt;
| -1 Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 80&lt;br /&gt;
| 10,000.00&lt;br /&gt;
| Grow Lighting&lt;br /&gt;
| Sun on a clear day (0900 Feb in VA)&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| -2 Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 85&lt;br /&gt;
| 17,782.79&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Sun on a clear day (1000 Feb in VA)&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| -3 Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 90&lt;br /&gt;
| 31,622.78&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Sun on a clear day (1100 Feb in VA)&lt;br /&gt;
| Operating Room&lt;br /&gt;
| -4 Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 95&lt;br /&gt;
| 56,234.13&lt;br /&gt;
| Operating Room&lt;br /&gt;
| Sun on a clear day (1200 Feb in VA)&lt;br /&gt;
| Operating Room&lt;br /&gt;
| -5Hide in Shadows&lt;br /&gt;
|-&lt;br /&gt;
| 100&lt;br /&gt;
| 100,000.00&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Sun on a clear day (1200 Feb in VA)&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
|-&lt;br /&gt;
| 103&lt;br /&gt;
| 141,253.75&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| Sun on a clear day (1200 Feb at the equater)&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
| &amp;amp;nbsp;&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>WikiAdmin</name></author>
	</entry>
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