In terms of design, Philips is using the same general approach for its latest LED bulbs for general lighting. The yellow/orange plastic on the outside acts as the phosphor to convert the blue light from the LED chips into a more pleasing and familiar yellow light. The light temperature for both bulbs is 2,700 Kelvin, similar to an incandescent bulb. The metal near the base acts as a heat sink, which is important to ensuring the long life of LEDs.
April 18, 2012 6:02 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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