Subject Started by Replies Views Last post
Notice Regarding Posting of Date Code Specs Patrick 0 4217 June 20, 2020, 11:18:36 PM
by Patrick
Date Codes on Lamptech Patrick 1 7364 June 24, 2020, 08:03:11 AM
by sox35
About the etching of Philips 400W tubular metal halide lamps produced in China bulb_tester2009 0 1483 May 26, 2022, 01:33:27 AM
by bulb_tester2009
What is the batch code of GE bulbs from 1980 to the present? bulb_tester2009 0 1895 July 21, 2023, 09:10:55 AM
by bulb_tester2009
Datecodes for Lamps made by British Electric lamps Ltd. before 1965 Alex 0 1127 December 25, 2022, 02:06:01 PM
by Alex
Date code on Philips ballasts Michael 0 1646 October 22, 2022, 06:41:35 AM
by Michael
Date code on my desk lamp HIDLad001 0 1517 July 24, 2022, 09:10:03 AM
by HIDLad001
Date codes for Sylvania tubes 108CAM 0 1577 June 24, 2022, 12:09:45 AM
by 108CAM
Westinghouse/Ken-Rad HID Flood lamp dating Bulbman256 0 1545 May 10, 2022, 07:40:53 AM
by Bulbman256
Atomic Spectra Database rjluna2 0 1503 November 03, 2021, 04:38:31 PM
by rjluna2
Does anyone have information about this chandelier? carg618 0 1437 November 02, 2021, 11:03:28 PM
by carg618
Mysterious Westinghouse HID date dash code Bulbman256 0 1892 September 04, 2021, 11:29:03 PM
by Bulbman256
L.H. Frost / ATC Frost fluorescent ballasts megathread Foxtronix 0 1944 July 19, 2021, 06:11:42 PM
by Foxtronix
Color codes for USSR tubes Jovan 0 2115 April 19, 2021, 03:19:38 PM
by Jovan
Color codes for Philips lamps Jovan 0 1741 April 13, 2021, 12:57:37 PM
by Jovan
Can someone decode this ? Jovan 0 1974 November 24, 2020, 12:48:04 PM
by Jovan
Tesla and Tež color codes Jovan 0 1734 December 25, 2020, 12:00:14 PM
by Jovan
Date codes for General Electric slimline lamps C.mid-late 50's-70's Burrito 1 1302 December 18, 2022, 07:59:03 AM
by funkybulb
How do I read date codes on Philips starters and American/HID lamps in general? Lamp_o_watcher 1 1842 November 03, 2022, 06:26:04 PM
by Rommie
Does anyone have ANSI C78.40? (Mercury Lamp Specs) Mr. Orthosilicate 1 6153 September 23, 2020, 10:18:03 AM
by James
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