Lowest color temperature ever achieved for white fluorescent lighting? « on: September 23, 2023, 03:52:43 AM » Author: WorldwideHIDCollectorUSA
Even though the lowest color temperature for common fluorescent lighting is 2700K, I have read that Mitsubishi/Osram of Japan has made a line of fluorescent lamps that have a 2500K color temperature In addition to Osram making a line of CFL lamps with a color temperature of 2500K. Did any other lighting manufacturers make fluorescent lamps that had a CCT that is below 2700K besides Mitsubishi/Osram of Japan or Osram of Europe? Here is some information about Mitsubishi/Osram's line of 2500K fluorescent lamps that I found out about: https://dl.mitsubishielectric.co.jp/dl/ldg/wink/ssl/wink_doc/m_contents/lcata/2012E/2012E0743.pdf
« Last Edit: September 23, 2023, 04:02:08 AM by WorldwideHIDCollectorUSA »		Logged

Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: Lowest color temperature ever achieved for white fluorescent lighting? « Reply #1 on: September 28, 2023, 05:23:01 PM » Author: Robotjulep
I do remember seeing very "warm" color temperature fluorescent lamps in landscape lighting when I was in Japan. It wasn't quite as warm as HPS, but it was warmer than 2700K. I didn't really think much of it at that time until now. On the other hand, I've seen a lot of 7000-8000K FL20SSECW/18XF lamps from Panasonic or National. They were often used in outdoor wall sconces or small area lights. Occasionally, I have seen them in elevators.
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	Re: Lowest color temperature ever achieved for white fluorescent lighting? « Reply #2 on: September 28, 2023, 05:25:16 PM » Author: WorldwideHIDCollectorUSA
Interesting. I have been seeing a number of preheat linear fluorescent tube wall sconces on Yahoo Japan Auctions and Mercari Japan before. I usually see them running FL10 tubes or FL20S tubes, but sometimes, I find them running FL15 tubes.
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: Lowest color temperature ever achieved for white fluorescent lighting? « Reply #3 on: September 28, 2023, 09:59:37 PM » Author: Robotjulep
I have an FL10D Lamp made by Toshiba. Its color temperature is around 4000-4100k or so.
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I collect:
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Electric motors (Preferably AC induction motors),
Computers,
and Stereo equipment.

	Re: Lowest color temperature ever achieved for white fluorescent lighting? « Reply #4 on: September 28, 2023, 10:02:31 PM » Author: WorldwideHIDCollectorUSA
In the Japanese catalogs, they usually say that tubes marked with “D” on the etch are 6500K.
« Last Edit: September 29, 2023, 01:11:18 AM by WorldwideHIDCollectorUSA »		Logged

Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: Lowest color temperature ever achieved for white fluorescent lighting? « Reply #5 on: September 29, 2023, 01:15:07 AM » Author: WorldwideHIDCollectorUSA
Quote from: Robotjulep on September 28, 2023, 05:23:01 PM I do remember seeing very "warm" color temperature fluorescent lamps in landscape lighting when I was in Japan. It wasn't quite as warm as HPS, but it was warmer than 2700K. I didn't really think much of it at that time until now. On the other hand, I've seen a lot of 7000-8000K FL20SSECW/18XF lamps from Panasonic or National. They were often used in outdoor wall sconces or small area lights. Occasionally, I have seen them in elevators. It seems possible that you might have possibly seen some of those Mitsubishi FL20SSELX/18 tubes in use.
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: Lowest color temperature ever achieved for white fluorescent lighting? « Reply #6 on: September 29, 2023, 06:07:22 AM » Author: LightsAreBright27
I remember a post about an osram cfl with 2500k phosphor.
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	Re: Lowest color temperature ever achieved for white fluorescent lighting? « Reply #7 on: September 29, 2023, 09:44:10 AM » Author: WorldwideHIDCollectorUSA
That was already mentioned earlier in this thread. I am wondering whether other lamp manufacturers besides Japan’s Mitsubishi/Osram company and Europe’s Osram company made other  white fluorescent lamps with a CCT below 2700K or even lower than 2500K.
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: Lowest color temperature ever achieved for white fluorescent lighting? « Reply #11 on: June 14, 2024, 07:25:37 AM » Author: TobiTechBoy
Recently my moms work has stepped over to LED Lighting and I was able to collect the left over fluorescent tubes. That's where i found some Pope18w/82 fluorescent tubes. Could these be 2000 kelvin? They are definetly warmer then the 18w/83 and 18w/827 tubes.
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Hi! My name is Tobias and I'm a Dutch streetlight/lightbulb enthusiast. I've been collecting bulbs since 2022. The voltage here is 220-240v 50hz!