Return to the Electrical Wiring Forum | Post a Follow-Up

250 VOLT bulbs

Posted by captainminibar (My Page) on
Sun, Dec 11, 11 at 20:22

One of the joys of being an international airline pilot is to visit the various foreign versions of Home Depot & Lowes.

I picked up a couple 250 VOLT, 100 watt bulbs figuring that the filament has to be #4 rebar.

In an 120V system they burn much dimmer, of course, but at what wattage are they buring>

Follow-Up Postings:

RE: 250 VOLT bulbs

Well, while the answer is 25 watts, I'm still stuck on whether I'd want to fly with international airline pilot "captianminibar" or not.

I can show you some great places in Tokyo, but please give me the keys to the plane!

RE: 250 VOLT bulbs

"while the answer is 25 watts"

Since power is voltage^2/resistance and you are running at half the voltage, the power is 1/2^2 = 1/4, or 25 Watts

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Electrical Wiring Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here