Maker Pro
Maker Pro

RED LED Darkroom light

duke37

Jan 9, 2011
5,364
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Jan 9, 2011
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5,364
Ny niece is thinking of taking up balck and white photography. Low power incandescent bulbs seem to be thin on the ground so I was wondering if a light based on red leds would do the same thing as a filtered incandescent light in a darkroom.
Would they affect enlarging paper?
How many leds at 20mA would be needed to match a 40W filtered light.
 

Martaine2005

May 12, 2015
4,932
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May 12, 2015
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4,932
Hi Duke, my neice also does black and white photography.
She uses E27 GU10s in red 620nm.
They have 20 red LEDs in each. She has 4 of these and the dark room is very red!!. She says it works the same as incandescents but could be brighter if she added more.

Martin
 
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