Subject Started by Replies Views Last post
Date Codes on Lamptech Patrick 1 2883 June 24, 2020, 08:03:11 AM
by sox35
Notice Regarding Posting of Date Code Specs Patrick 0 1084 June 20, 2020, 11:18:36 PM
by Patrick
Mysterious Westinghouse HID date dash code Bulbman256 0 252 September 04, 2021, 11:29:03 PM
by Bulbman256
GE Etching Changes F4T5 Bulb 0 484 August 20, 2021, 08:18:48 PM
by F4T5 Bulb
Sylvania datecodes? Bulbman256 6 371 August 13, 2021, 09:42:23 AM
by Bulbman256
L.H. Frost / ATC Frost fluorescent ballasts megathread Foxtronix 0 501 July 19, 2021, 06:11:42 PM
by Foxtronix
Color codes for USSR tubes Jovan 0 766 April 19, 2021, 03:19:38 PM
by Jovan
Color codes for Philips lamps Jovan 0 348 April 13, 2021, 12:57:37 PM
by Jovan
Westinghouse T8/T12Fluorescent - 1960s/70s - compiled from public domain data TL8W 0 336 April 07, 2021, 07:19:31 PM
by TL8W
Ballast Date Codes joseph_125 3 1093 March 17, 2021, 05:32:12 PM
by joseph_125
Osram changed datecodes again. Alex 1 473 March 02, 2021, 02:42:20 PM
by James
A comprehensive list of sealed beam lamps (wanted) HomeBrewLamps 3 709 February 22, 2021, 12:47:54 AM
by wide-lite 1000
OV- 15 manufacturing date? Metal Halide Boy 3 843 January 22, 2021, 05:20:59 AM
by LightsDelight
Tesla and Tež color codes Jovan 0 587 December 25, 2020, 12:00:14 PM
by Jovan
Can someone decode this ? Jovan 0 774 November 24, 2020, 12:48:04 PM
by Jovan
Does any one have Lamp specs for 20 watt CMH funkybulb 5 1159 November 15, 2020, 02:28:46 PM
by lights*plus
Does anyone have ANSI C78.40? (Mercury Lamp Specs) Mr. Orthosilicate 1 2441 September 23, 2020, 10:18:03 AM
by James
Leviton Date Codes flyoffacliff 3 2064 August 19, 2020, 12:14:50 AM
by flyoffacliff
Date Code Calculators joseph_125 1 1019 August 02, 2020, 11:59:19 AM
by sox35
My LM Unistyle CreeRSW207 2 1896 July 16, 2020, 12:59:02 AM
by wide-lite 1000
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