S1A1F4E1L1I1G2H4T1
16 points
SAFELIGHT is validvalid
[n SAFELIGHTS]
a light used in a photographic darkroom etc., which emits light of an intensity and colour which will not damage the materials being processed [n -S]
[n SAFELIGHTS]
a light used in a photographic darkroom etc., which emits light of an intensity and colour which will not damage the materials being processed [n -S]