This is a product for the anyone who wants to play with white light color shifts and the impact this has on surfaces. Designed as a desktop tool to check mock-up boards and to use in presentations to customers to show the differences in color response to light sources. It’s small, easy to use, and includes warm and cool white, plus amber and blue. This can be used to simulate full on daylight to dimmed incandescent or candle light, as well as high CRI (92) 3000k and 4000k white light, or any combination of the above. Mix warm and cool white with amber and a touch of blue and you’ll see surface colors richer than you’ve seen under any other light source. Use the 4000k white and a little blue and a touch of amber to create daylight, or take out the amber and crank up the blue to see pale moonlight.

I’d take this to the store when doing paint selection to make sure that the overhead lighting is not messing with my perception. Or, using a color chart to match a light source, one could take it to pick woods, tile, paint, fabrics, etc… whever they might be, looking at each under the same light.

I like having these kinds of gadgets around. I use the RGB version of this to play with shadow effects and look at what happens when you fiddle with the balance. This white light version is even more interesting and often surprising, as what one thinks will happen intuitively often doesn’t at all. For instance, white and black generally aren’t. Grays are also very reactive to incident light chromaticity. I also have a small battery pack that plugs into this to operate the light anywhere for up to 10 hours without a power source.

It’s a compact little device, 4’W x 7″H, x 2 1/2″D, so is not too bad to carry into an office for customer presentations, or to use as an evaluator in finish selection meetings. As a light source, it could be table, wall or ceiling mounted. Another version might include an integrating function to remove color separation effects from the individual source.

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