Depending on what time of the day you use your lamp, you may like to adjust its colour to match the ambient. Or not. Either way Hammacher can help with this Adjustable Hue Desk Lamp. It’s a cold cathode fluoro lamp (CCFL) and the hue can be adjusted from 2700K (warm incandescent bulb colour) all the way up to 6500K (overcast daylight). It would also make a useful photography light source. US$199.95

This is the only desk lamp that allows you to adjust its hue from a warm, golden accent light to a crisp, white task light that simulates natural sunlight. A four-way directional button provides smooth, continuous adjustment of the color temperature from 2,700� Kelvin–ideal for casting a soft, ambient glow–to 6,500� Kelvin, generating a clear, white light that illuminates crafts, books, or paper work with distortion-free light.

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