Colormunki Photo device and ccStudio

[Ink stained Fingers]

@Smile - do you have a seller where such a lamp can be purchased - or even a part/item number to look for a source .

Tks

 

[Smile]

@Smile - do you have a seller where such a lamp can be purchased - or even a part/item number to look for a source .

Tks

Yes sure.
This is original article in Russian https://cielab.xyz/forum/viewtopic.php?style=1&t=582
These are lamp that should work

1. RIESTER 10605 2.5 0.75A RI MINI
2. LNS BP310, BS H1 Pentax

https://www.made-in-china.com/showr...er.html?pv_id=1ifsgb2pj42&faw_id=1ifsgfi4u07e

 

[Smile]

If you want to replace whole part then there are these:

https://www.aliexpress.com/item/1005004215523282.html
https://www.aliexpress.com/i/1005003223232671.html

But I would try to buy the lamp it's much cheaper but requires more work.
Also make sure you have white tile data, and something like colorchecker with old lamp to compare to new one is also good but these drift unlike white tile. I always make these tests every year.

 

[Ink stained Fingers]

@Smile - thanks for the links, the aliexpress links just tell me that the item is not available at my location; I'll try early next year to contact the 'Made in China' link,

There is a rarely known effect with the i1 spectro and this halogen lamp, when you reach the end of the lifetime of this lamp the calibration status of the spectro becomes dependant on the actual voltage of the 5 Volt line, this 5V line can vary between 4.8V to 5.3 V as I see on my hardware, I have an old spectro which calibrates on a USB hub with an external power supply providing 5.2V under load, and the same spectro fails calibration when connected to an USB port below 4.9 V . It's the lamp brigthness which varies strongly with the supply voltage - acctually every filament bulb does this. Looking for and using a higher voltage USB connection can give you a little bit more lifetime for an old i1 spectro.


Get a simple USB voltmeter like this one to test your USB ports

https://www.amazon.de/YEREADW-Strommessgerät-Multimeter-Strommesser-Spannungsprüfer/dp/B0DF2KFDC8?crid=P9PIKOIB421H&dib=eyJ2IjoiMSJ9.BPuwOtgiv2SZAHvHIFVVhUzzV3fmq0aUWVGGTbbIyi--mTp9l87OixHpOtNKStDR8kYy_e8eU2ljrC4rNc35g0kzgTtmJjo6baKXs7tyvzMlwRxzSygbmN85_AGiNgEpPBqUcxjBJsBmdCj1N4oX52_03RDo_jt-EqsMst7rnZsprX4BPj_fem1x45so4R5ZUw9uQRRZ8yXMlt4iyqmVTdAbIKB4gGJkU4Ww_NOSGDGN-SKvuXaFZMce09cxzvy8LlXSdFHDAvg6UpEvDUl4O-fGeUTDwmqeqJxi4cZcg8bVjx3riGwO8bRE78hF6B7DTjArsPH3hx0OxtRtSIqyweDeHd1UbCiP8fGmc7YEOLWnMeFdhlBuSeyRTxx0SDfsaFYhoacnS3bw7YIyPCzvrYzlc55eG4CoBYKp3Jlxpfmj_Npf7WH2YhUzIm7AHNgy.TkwJuPmPw4MMKJp-7nPJh0mTIFt4gBLpz9P1TP-Wzmc&dib_tag=se&keywords=usb+power+meter&nsdOptOutParam=true&qid=1735115591&sprefix=usb+meter,aps,138&sr=8-15&th=1

There are plenty of such meters available on various platforms - as well Ebay.