Turning

Subject:
Re: Shop Light
Response To:
Re: Shop Light ()

Jeff Smith
Since the numbers look a lot alike to the unitiated, thought I'd put out there that when we're talking about lumens it's describing the amount of light output. More lumens, more, brighter light.
Color temperature is in degrees Kelvin (K) and describes the quality of the light by it's color - standard daylight can vary from 5500 to 6500 degrees kelvin. This describes a light that is very much on the blue side. A lower color temperature - from 4000 to 2500 degrees Kelvin describes a warm light with a lot of yellow/orange in the mix. Incandescent tungsten lights (what we used before leds entered our lives) are typically around 3500 - 2500 degrees kelvin and put out a nice warm light that I personally find comforting. In terms of assessing color accurately, our eyes adjust to whatever light we've got to one extent or another. Mixed lighting becomes harder to live with. If you light your shop in flourescent lights (notoriously spikey, green and lacking in the shadow areas) and fill in with tungsten or led light as a close in task light you wind up with shadows that are a different color from the highlights. Its visually confusing even if its a subliminal effect.

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