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A lamp having one or more color filters allowing moderate darkroom illumination without affecting photosensitive film or paper.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Photography) photog a light that can be used in a room in which photographic material is handled, transmitting only those colours to which a particular type of film, plate, or paper is relatively insensitive
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



a darkroom light with a filter that transmits only those rays of the spectrum to which films, printing paper, etc., are not sensitive.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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* CareValidate - Powered by a life-saving light bulb called SafeLight, CareValidate provides health, safety and quality of care telematics to transform workers' compensation, senior living, long-term care, life and health insurance products with plug-and-play insurtech solutions.
I fumble in the dark, lit only with a small safelight, a reminder of God's ever-present love in dark places.
Safelight leverages NetApp to transform the delivery of its auto glass services, surpass competitors, and expand its customer base during one of the worst recorded hurricane seasons.
Safelight. His son bursting into focus from the shallow darkness-- already looking back.
Cells were handled in the dark under a red safelight (7 W Konex bulb and Safelight Filter GBX-2, Kodak, Rochester, NY, USA).
EVAN Peters looked to his late uncle as inspiration when portraying a cerebral palsy sufferer in Safelight.
US software security assessment and training company Security Innovation Inc said it had acquired domestic information security and developer training specialist Safelight Security for an undisclosed amount.
You did this in a darkened room (or closet), with only a small amber-filtered safelight that produced a frequency of light the paper was blind to.
During the inspection to Gachine Uranium mine (the name of this place is reflected in the annex of DG report), inspector showed me a safelight photo given by US and claimed that there is another uranium mine in the same area and Iran had not declared to the IAEA.