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First, I considered light quality by assessing how closely each bulb’s color temperature matched its description as well as how accurately it rendered the natural colors of the objects around it.

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts Why isn’t there a ...

The law provides for phasing out today’s general service incandescent light bulbs in ... of the incandescent replacement technologies. The filament is encased in a bulb made of fused quartz ...

Wanting to make some unique and interesting gifts for his nieces as well as improve his PCB skills and expand beyond Arduino, [Jay] has made these color changing Ikea lamps. He’s using an ...

Immediately after the capacitor is connected to the battery, the light bulb will glow as current flows through the light bulb and the capacitor is charging. After some time, the capacitor is fully ...

When the lights go out, you're in the market for a bulb replacement. But if choosing between CFLs, halogen or LEDs leaves you in the dark, our guides will separate the fact from the hype for each type ...

New standards for light-emitting diode (LED ... Specifically, he said, Americans will save about a dollar per bulb under normal usage conditions, which comes out to a $50 annual savings in ...

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A team of material scientists and engineers affiliated with a host of institutions in China took a new look at the incandescent light bulb and found a way to improve its efficiency. In their paper ...

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts Why isn’t there a ...