Which light bulb lasts the longest




















These products replace the standard 60w bulbs used so commonly in homes and offices, and are advertised as lasting more than twenty years under normal usage conditions. The main difference between the 6w and the 9w bulb is the type of light it produces and the type of lamps the bulb is compatible with.

Like the larger 9w version, this bulb is guaranteed to last somewhere in the neighborhood of two decades, based on average usage in a home or office setting. That truism has lately come into question, however, thanks to the widespread adoption of durable, light-emitting-diode light bulbs.

Current penetration in the consumer-lamps market as the bulb business is known is seven per cent worldwide, and is expected by lighting analysts to reach fifty per cent by around This would seem to be a good thing, but building bulbs to last turns out to pose a vexing problem: no one seems to have a sound business model for such a product. And, paradoxically, this is the very problem that the short life span of modern incandescents was meant to solve. And so, one of its priorities was to depress lamp life, to a thousand-hour standard.

The effort is today considered one of the earliest examples of planned obsolescence at an industrial scale. When the new bulbs started coming out, Phoebus members rationalized the shorter design life as an effort to establish a quality standard of brighter and more energy-efficient bulbs.

Phoebus is easily cast as a conspiracy of big-business evildoers. In its day, however, the shift to planned obsolescence was in keeping with the views of a growing body of economists and businesspeople who felt that, unless you dealt in coffins, it was bad business and unsound economics to sell a person any product only once. With the advent of L. After a long technological incubation, L. Today, hardware-store-variety L. Plug one in on January 1st and it will wane by about May 15th the following year.

Under more ordinary usage—each of the sixty-seven bulbs in a typical American household is turned on for an average of only 1. Incentives for the purchase of L. Department of Energy considers the widespread adoption of the technology to offer the greatest potential impact on energy conservation in the country. But does their increased prominence mean that, sometime between the Phoebus cartel and now, we found the business model for stuff that lasts?

Market-analysis firms such as I. Technology and Strategies Unlimited predict that socket saturation will be felt across the global market in Parts of Asia, including China, may already be feeling the effect. Although the lamps market will bring in an estimated thirty-eight billion dollars this year, L. One response, echoing the path of incandescents, is the emergence of cheaper bulbs with shorter life spans. The next best are CFL bulbs which bring in a respectable 8, hours of average life expectancy.

Keep in mind, most tests are based on a running time of 3 hours per day. Continue reading. Please enter the valid email. Log in. Light Learning , Press News. April 29, Posted by Brandon McBride. Quick Menu — click below Brightness: which bulb is brighter? Life Span: which bulb lasts longest? Cost: which bulb costs less? Viribright 4. Sale Product on sale.

Select options. Add to cart. Rated 5. Read more. Tags: Light Insights. April 26, Posted by Luis. The past year has been unique.



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