Speakeasy forum

General discussion

dim bulbs last longest (the 95 year light bulb)

Non political intellectual discourse:

You've all heard about the few, ancient light bulbs operating for up to a century and still going strong.


By incandescing a filament a lower than design-center temperature, the filament does not evaporate, embrittle nearly so quickly. Nor does it provide the rated measure of visible light.

To make your own millenial light bulb experiment, operate the bulb at just enough current to make the filament glow orange red. It will last indefinitely.

Operate the same bulb at 120V (if that be it's design center; it will last, say for 750 hours.

At 130 volts it gives better light but lasts, say 100 hours

At 100 volts it gives yellow light but lasts, say 10,000 hours.

At 50 volts it is cheery orange and lasts perhaps, 100,000 to one million hours.

At 20 volts it probably emits just dull orange. At this minor heat the filament hardly ages at all. Orange. Will last so long that the Head Orangutang of Planet of the Apes will marvel: here was the brightest and only good idea from those idiot humans who raped and savaged our kind until they themselves died off from terminal ugliness of the soul.

Discussion is locked
You are posting a reply to: dim bulbs last longest (the 95 year light bulb)
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: dim bulbs last longest (the 95 year light bulb)
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
(NT) (NT) How about a 130V bulb at 120? :)

In reply to: dim bulbs last longest (the 95 year light bulb)

Collapse -
good question!

In reply to: (NT) How about a 130V bulb at 120? :)

The 130V light bulb run at 120 volts gives you us the touted "long life bulb".

At expense of lumen efficency (light output per watt of power consumed), the 130V design-center bulb is sturdier-lived than a standard 120V bulb. But what a waste of power.

Today there is little reason for any of us to be using conventional incandescent bulbs. MOST of the electrical energy they convert, by resistance, into incandescant light, is LOST in the form of infrared heat.

Unless you are heating your home's interior in winter (most are) the incandescent bulb is a waste of current.

And if your home heat comes by oil heating, then probably even the 'free heat' of wasteful incandescent is a needless econonomic drag.

Today there are a whole new generation of compact flourescent bulbs. About seven times more -efficient- than incandescent. About ten times longer lived. Will save any of you much money and hassle- and they give a light quality/color fully comparable to incandescent.

One drawback: they cannot be "dimmed" successfully.

For outdoor lantern fixtures, average floor lamps and table lamps the compact flourescent is available in lumen-equivalents of 20W to 150W old-style bulbs.

Here, then, is a way for even us Dim Bulbs to do something small and bright, to reduce our cost of living and our dependence upon arab terrorists who gut our wallets worse each passing month.

Popular Forums

Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Sublime suburban chariot

High on style and technology, the 2019 Volvo XC90 is an incredibly satisfying everyday crossover.