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2ndPope · 09-08-2016, 11:48 AM

You are correct. Damn it.

Create 1 = 1.000.000 J = 0.28 kWh = 280 Watts work for 1 h

A modern LED lamp have a luminous efficacy of 90 lumens/watts.
280 watts x 90 lumens/watts = 25 200 lumens.
Daylight (not direct sunlight) has a Lux (lumens/sqm) of 10.000-25.000
10m radius = 314 sqm —> 80 Lux
Sadly that equals the lighting in your toilet. But that is if the light lasts 1 h

If it only lasts 10 min as in the original spell Anders wrote, it will have higher output per time unit.
We then get a lumens that is 6 times higher. Total 480 Lux. Which equals the light in a normal office-building workarea. Not as bright as Daylight but maybe close enough.

09-08-2016, 11:48 AM	#78
2ndPope Join Date: Sep 2016	Re: [Sorcery] Spellbook project You are correct. Damn it. Create 1 = 1.000.000 J = 0.28 kWh = 280 Watts work for 1 h A modern LED lamp have a luminous efficacy of 90 lumens/watts. 280 watts x 90 lumens/watts = 25 200 lumens. Daylight (not direct sunlight) has a Lux (lumens/sqm) of 10.000-25.000 10m radius = 314 sqm —> 80 Lux Sadly that equals the lighting in your toilet. But that is if the light lasts 1 h If it only lasts 10 min as in the original spell Anders wrote, it will have higher output per time unit. We then get a lumens that is 6 times higher. Total 480 Lux. Which equals the light in a normal office-building workarea. Not as bright as Daylight but maybe close enough.