OK, it would be pointless.

yup, unbelievable. only thing its got going for it is it ain't gonna dim out like a merc does....at this rate it would be better for them to just make a low pressure sodium version.

@Medved : Have you ever considered writing a book ? The way you explain the various phenomenons not only in lighting, but in electricity distribution and use, is just a joy to read. You explain complicated concepts with such easy to understand words. Thanks again for the eloquent explanation of this situation ! 

We've got the threat of severe weather later today... marginal threat, so very slight. The only threat with each storm today is strong winds.
However, tomorrow we've got a greater threat of severe weather, since a stronger cold front will be arriving tomorrow, and all types of
severe weather is possible with that threat. I'm off work tomorrow, thankfully. But today I've got my sportcar sitting out in the parking
lot of my apartment complex, due to a high level of bumble bees around my detached garage. I work tonight, so hopefully the severe weather
does not arrive today. I give it permission to arrive tomorrow though!

@Eleco_SR304 i know no one actually cares about the Belgian stuff but i had this really odd autistic moment and had loads of  free time 

There are definitely less people interested in Belgian street lights than Polish! Polish street lights are very interesting.

There are definitely loads more people interested in American and British lighting.

I would prefer for someone to read it then comment then someone to read it and not comment.

The closest thing I can find to this is an F12T8 that seems to be one of those weird blacklight tube formats and is 12” long, but that has already been mentioned here.

There’s also an old format called the F13T8 that is also 12” long but is 13-watts. I believe that lamp is used in things like vending machine signs, display cases, and grocery store refrigerators, basically anywhere a very short but bright lamp is needed. But again, not 13.5”.

It is very much possible that the lamp was made for a very specific fixture. Small special-purpose fluorescent fixture manufacturers were designing proprietary fluorescent lamps all the time. I have seen some real oddballs. It’s likely that this is one of those proprietary lamps and information about it just doesn’t exist online.

Meanwhile, when i demonstrate incandescents in class the kids are always asking why they are so unbelievably hot.

@lcubed - Osram has 2500k and 2200k 94cri LED lamps that give a beautiful light.

I don’t really touch on this subject, but I’ll put my two cents.

Forums in general were a fad of the 2000s. I’m on other forums, and I’ll tell you they’re all pretty much suffering from a similar decline in participation from their users, both legacy and newcomers. Some sites have even gone completely under, like our competitor GoL.

The trend I believe is most have migrated to social media groups, such as Facebook. Social media overall in the past decade plus has become increasingly popular for many communities. Those leftover who do not do those platforms stay here, whether active or inactive.

Lastly, the pandemic gave this site a real boost due to stay-at-home orders which led to a significant increase in participation/new users. But since that era is long over with we don’t have that advantage.

I believe L-G itself does go through slumps, but doubt it will go under. But ultimately users are not obligated to engage regularly.

Sandstorm in Haifa:

As far as I know, the 13 inch F10T8 tubes have an arc voltage drop of about 45V and an operating current of about 230mA according to Japanese catalogs I have read through.