Watt of bulb


Nov 5, 2012
8
1
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Hello, how many watts and lumens were the light bulbs? Sorry for my bad english

For example in the cafè parisien we can see perfectly the bulbs.

titanic_cafe_parisien_in_color.jpg

titanic_cafe_parisien_in_color.jpg
 

Doug Criner

Member
Dec 2, 2009
445
64
133
USA
According to Chap. 17, Vol. 1, of Titanic, the Ship Magnificent, by Bruce Beveridge, Titanic had about 10,000 incandescent lamps (bulbs). They ranged from 16 to 25 candlepower, with 16 being the most numerous. (1 candle = 4 pi lumens.) I don't know of a source for the candlepower of specific lamps. I'm just curious: why are you asking?
 
Nov 5, 2012
8
1
33
I ask because I want to do a lighting calculation for the cafè parisien.
To do this I have an idea to use the software DIALUX

For example

untitled-2.jpg


Dialux+EVO+-+False+colors.jpg
 

Doug Criner

Member
Dec 2, 2009
445
64
133
USA
It would be interesting to know the light levels in the café. Was it brightly lighted or rather dark, like a romantic hideaway? This would have been before light dimmers, of course, like now in modern restaurants.
 
Nov 5, 2012
8
1
33
I have found in google that 1 candlepower= 12,57 lumen

I have calculate:
100 candlepower= 1257 lumen

but i have found that lumen= candlepower/0.07958

I have calculate:

100/0.07958 = 1256 lumen

The results are ok! Now I have to put in the software the value of Watts
 

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