Subject Started by Replies Views Last post
Notice Regarding Posting of Date Code Specs Patrick 0 3900 June 20, 2020, 11:18:36 PM
by Patrick
Date Codes on Lamptech Patrick 1 6967 June 24, 2020, 08:03:11 AM
by Rommie
Can someone decode this ? Jovan 0 1917 November 24, 2020, 12:48:04 PM
by Jovan
Color codes for USSR tubes Jovan 0 2069 April 19, 2021, 03:19:38 PM
by Jovan
Color codes for Philips lamps Jovan 0 1686 April 13, 2021, 12:57:37 PM
by Jovan
L.H. Frost / ATC Frost fluorescent ballasts megathread Foxtronix 0 1883 July 19, 2021, 06:11:42 PM
by Foxtronix
Mysterious Westinghouse HID date dash code Bulbman256 0 1843 September 04, 2021, 11:29:03 PM
by Bulbman256
Date code on Philips ballasts Michael 0 1466 October 22, 2022, 06:41:35 AM
by Michael
Does anyone have information about this chandelier? carg618 0 1394 November 02, 2021, 11:03:28 PM
by carg618
What is the batch code of GE bulbs from 1980 to the present? bulb_tester2009 0 1733 July 21, 2023, 09:10:55 AM
by bulb_tester2009
Date code on my desk lamp HIDLad001 0 1463 July 24, 2022, 09:10:03 AM
by HIDLad001
Tesla and Tež color codes Jovan 0 1687 December 25, 2020, 12:00:14 PM
by Jovan
Atomic Spectra Database rjluna2 0 1455 November 03, 2021, 04:38:31 PM
by rjluna2
Date codes for Sylvania tubes 108CAM 0 1537 June 24, 2022, 12:09:45 AM
by 108CAM
Westinghouse/Ken-Rad HID Flood lamp dating Bulbman256 0 1498 May 10, 2022, 07:40:53 AM
by Bulbman256
About the etching of Philips 400W tubular metal halide lamps produced in China bulb_tester2009 0 1435 May 26, 2022, 01:33:27 AM
by bulb_tester2009
Datecodes for Lamps made by British Electric lamps Ltd. before 1965 Alex 0 961 December 25, 2022, 02:06:01 PM
by Alex
Japanese fluorescent lighting specifications and history PDF WorldwideHIDCollectorUSA 1 628 March 11, 2024, 05:18:53 AM
by WorldwideHIDCollectorUSA
who knows date code of this Tungsram HgLS 250? valirex 1 1764 November 21, 2021, 05:39:58 PM
by James
Radium SOX date and age waterbug 1 1932 February 19, 2022, 09:31:05 AM
by Danny
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