Subject Started by Replies Views Last post
Notice Regarding Posting of Date Code Specs Patrick 0 2667 June 20, 2020, 11:18:36 PM
by Patrick
Date Codes on Lamptech Patrick 1 5273 June 24, 2020, 08:03:11 AM
by Rommie
About the etching of Philips 400W tubular metal halide lamps produced in China bulb_tester2009 0 853 May 26, 2022, 01:33:27 AM
by bulb_tester2009
Date codes for Sylvania tubes 108CAM 0 927 June 24, 2022, 12:09:45 AM
by 108CAM
Atomic Spectra Database rjluna2 0 1055 November 03, 2021, 04:38:31 PM
by rjluna2
Does anyone have information about this chandelier? carg618 0 985 November 02, 2021, 11:03:28 PM
by carg618
Date code on Philips ballasts Michael 0 742 October 22, 2022, 06:41:35 AM
by Michael
Mysterious Westinghouse HID date dash code Bulbman256 0 1431 September 04, 2021, 11:29:03 PM
by Bulbman256
L.H. Frost / ATC Frost fluorescent ballasts megathread Foxtronix 0 1449 July 19, 2021, 06:11:42 PM
by Foxtronix
Color codes for USSR tubes Jovan 0 1664 April 19, 2021, 03:19:38 PM
by Jovan
Color codes for Philips lamps Jovan 0 1255 April 13, 2021, 12:57:37 PM
by Jovan
Westinghouse/Ken-Rad HID Flood lamp dating Bulbman256 0 937 May 10, 2022, 07:40:53 AM
by Bulbman256
Date code on my desk lamp HIDLad001 0 785 July 24, 2022, 09:10:03 AM
by HIDLad001
Can someone decode this ? Jovan 0 1482 November 24, 2020, 12:48:04 PM
by Jovan
Datecodes for Lamps made by British Electric lamps Ltd. before 1965 Alex 0 308 December 25, 2022, 02:06:01 PM
by Alex
Tesla and Tež color codes Jovan 0 1290 December 25, 2020, 12:00:14 PM
by Jovan
Electronic Lamp Manufacturers of Australia Date Codes 108CAM 1 1034 October 19, 2022, 04:00:38 AM
by 108CAM
Appeal for field info TL8W 1 534 February 19, 2023, 05:52:52 PM
by TL8W
who knows date code of this Tungsram HgLS 250? valirex 1 1345 November 21, 2021, 05:39:58 PM
by James
Date Code Calculators joseph_125 1 1911 August 02, 2020, 11:59:19 AM
by Rommie
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