Return to the Lighting Forum | Post a Follow-Up

 o
Use CA bulb in place of B?

Posted by pitpat (My Page) on
Sat, Sep 29, 12 at 13:04

Hi, we have 2 small bedside table lamps that require a type B bulb with no more than 25 watts. Problem is, we can't find those. We can find 40-W type B and 25-W type CA. Can we just use the CAs if they are not so long that they would touch the shade? If they fit and they are 25 watts or less, does it really matter??

Thanks
PS, I'm sure we could *order* type B 25-W bulbs, but we'd like to just pick them up at the store.


Follow-Up Postings:

 o
RE: Use CA bulb in place of B?

I recall installing only one fixture requiring type B lamps. Owners had purchased all the fixtures for the new house. If your fixtures are not enclosed and the 40 watt Type B will physically fit in the available space, that should be OK if the brightness is not an issue. If enclosed fixture, the maximum wattage should be posted on/in the fixture. If the CA will fit and is in the acceptable wattage range, I see no reason not to use it.


 o
RE: Use CA bulb in place of B?

These are just small bedside lamps. I guess they are "accent lamps." One has an upright shade, so there is no risk of touching. The other has a sideways shade (like those green banker's lamps but smaller). That one does not have much space in it for a bulb. DH has a 40-W type B in it right now b/c it was the only thing he could find that fit. I would like to put a 25W bulb in b/c the 40 is too bright and I am a bit concerned about the heat output. I will try to find a 25W CA bulb that is short enough. I wish he had kept the old bulb when he changed it so I could see it. I think it might have been the bulb that came with the lamp long ago.

Anyway, thanks for the advice! It seemed like the CA *should* be an option, but I wanted to hear someone else say that too.


 o
RE: Use CA bulb in place of B?

If the B- 40 fits, then you can use it to compare lengths. Please tell us the base size of the lamp. Edison (standard for 60 and 100 watt), candelabra ?
Plenty of 25 watt Type B are available with the candelabra base, the GE Reveal line being an example. Adapters from Edison to candelabra are available on eBay and would add negligible length to the assembly. For those with more experience, changing to a different socket type would be possible.


 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 Lighting 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.
  • 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