It's pretty easy to accidentally click.

Hmm, odd, I certainly didn't deliberately click it, nor do I recall accidentally clicking that button. My mistake I guess...

Of course, those lamps should work great on North American single phase 277V 60Hz supplies!!

 I got an Email notification yesterday at 11:02 P.M. EST saying :

 
Lighting-Gallery.net
Mar 31, 2026, 11:02 PM (19 hours ago)
to me

A topic you are watching has been locked by Baked bagel 11.

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Unsubscribe to this topic by using this link: https://www.lighting-gallery.net/index.php?action=notify;topic=17847.0;u=2766;token=5qoD_1FslrA6rQ

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From what I understand, Tesla, among others, recommended 220V and 60Hz as the world standard. A cycle of 60Hz makes it easier to calculate 3-phase systems. In North America, it was seen as a prudent move to lower the voltage to 110V for "safety" reasons. In Europe and many other countries, they kept the 220V and lowered the 60Hz to 50Hz for a very political reason : 50 more closely resembles the metric system than 60Hz. Now that the tradition is well established and that there are enormous amounts of appliances and machines that operate on electricity, it is way too difficult to change.

Note : 110V mains were augmented to 120V, and 220V mains were augmented to 230V in some places and 240V in others.

If it was possible, I would vote for 240V and 60Hz as a world wide standard.

At its core 120v power here is actually 240v.

Then who actually locked it? I'll have to do some research and see...edit: Just did some research, not entirely sure who locked it. Post was made in 2025 so I don't remember.

Last thread that was locked was not locked by me.

Wasn't me either, I started the topic. Who else could?

I'm not calling anyone a liar, this is a genuine question...

Globe collector mentioned 280v Brazillian lamps.

Hello James Thanks for your offer. I would like to have 5 tubes. They need to be in working state not NOS strictly just to have them working. We can exchange for some bulbs or something special. In shops Fluora is rare and is only able at 25 pcs(one box). I will try and see if they sell Narva BioVital ones in T5 or PL-L format and we can exchange. Send me private message or mail.

The dedication is amazing! Thanks for sharing all of this information!