https://www.lighting.philips.com/api/assets/v1/file/Signify/content/LP_CF_XUMCOL52_EU.en_AA.PROF.CF/Localized_commercial_leaflet_Blue___52__TL_TL_D_en_AA.pdf

Here's the leaflet of a random color 52 tube. Indeed, jaundice is one of the applications, but probably also just decorative blue light.

If you hook it up to a neon sign transformer, it will glow deep red (neon) or sometimes purple (argon). You can use it as a decoration, moodlight or nightlight based on brightness.

Whole place was probably torn down by now.

I am surprised to hear of a quality difference.  Iwasaki moved its arc tube production to Dalian in China over 20 years ago, and Japan only did the outer jacketing.  Now the latter has also been relocated.  If the run-up is slower it could only be due to a change in gas type and/or pressure but I do not see why they would do that, it’s been fixed for most mercury lamps since the 1950s.  Another possibility is that Iwasaki also stopped making the arc tubes and just buys in the complete lamp from another supplier.

Could've fallen over already, the image as taken back around 2010 IIRC

Fortunately it didn't need any stitches, just bandaging up, she'll give a full account of what happened later on.

  Not good Ria !! Did you have to get any stitches ?? Get better soon !! 

 I've uploaded several pics lately that've got little to no views , let alone comments !!

 All that weight won't stay like that for long !!! 

Quality is worse...they take what seems like forever to come to full brightness. I had some clear ones...ended up donating them to the ReStore...

 My EYE 700w does that !