This is a pretty obvious companion to the Spectra page.
In addition to knowing what bands of light actually make up the output from a given lamp, it's very interesting sometimes to compare side-by-side what effect they actually have on how we perceive colour.
Below you will find a selection of photographs of the same reference image. They quite clearly show how the colours on the image are "distorted" by different light sources.
To do side-by-side comparisons I'd suggest saving them to your hard drive and using an image viewer to flick back and forth between them - that seems to be a good way to really pick out differences.
Reference image - Afternoon Daylight (clear sky).
Compact Fluorescent Lamps.
General Electric BIAX Electronic Extra Mini FLE15TBX/XM/840. 4000K.
Osram Dulux EL 11W 41-827.
Philips SL*18W Comfort (1993) - Warm White.
Sylvania Mini Lynx Pastel 11W Apricot.
Sylvania Mini Lynx Pastel 11W Rose.
Linear Fluorescent Lamps.
Cryselco F30W T8 White (1979). 4000K Halophosphate.
LED Lamps.
Philips 7W Warm White A60 LED Retrofit (will get precise model shortly...).
Incandescent Lamps.
(TO FOLLOW).
Compact Fluorescent Lamps (Coloured).
Impact Colourspiral 15W Blue. (Coloured Glass).
Impact Colourspiral 15W Green. (Coloured Glass).
Impact Colourspiral 15W Yellow. (Coloured Glass).
Powerplus 13W Spiral Orange. (Coloured Glass).
This page last updated:
11th June 2023: Changes to page formatting to improve readability on mobile devices & some background code changes.
