Subject Started by Replies Views Last post
U.S. Linear Fluorescent Efficency Standards for 2018 Patrick 4 1504 January 22, 2017, 09:07:19 PM
by streetlight98
U.S. Made Spiral CFL Patrick 10 2727 September 12, 2012, 12:57:55 PM
by Medved
U.S. MV wattage and European counterparts? Roi_hartmann 3 1566 March 24, 2009, 06:30:56 PM
by Medved
UHP merc lamp in my DLP TV Banned? « 1 2 » J-Frog 16 6047 June 11, 2009, 03:18:41 PM
by form109
Underdriving/overdriving lamps: Effects on lamp & ballast « 1 2 » arcblue 21 16398 January 01, 2018, 03:48:48 AM
by Medved
Unexpected discountinue of Osram PLANON flat fluorescet lamps dor123 2 3058 January 06, 2010, 04:31:23 AM
by dor123
unknown ballast Alights 2 2119 June 29, 2010, 07:57:17 PM
by Luminaire
Unknown lamp ivan 6 1540 October 09, 2015, 02:50:39 PM
by ivan
Unknown Philips? N3210 4 705 May 19, 2022, 05:36:49 PM
by joseph_125
unknown sodium arc tube marcopete87 6 1648 July 02, 2013, 10:32:12 AM
by marcopete87
Unknown type of semiconductor die in the green LED of my Inova microlight dor123 3 1754 September 24, 2010, 07:25:22 PM
by toomanybulbs
Unprotected lamp in open fixture lightingcollector84 2 1547 July 06, 2009, 07:11:58 PM
by lightingcollector84
Unusual GE Magnetic CFL BlueHalide 5 1798 January 23, 2015, 11:19:29 AM
by paintballer22
Unusual Lamps « 1 2 » FGS 17 8105 April 26, 2020, 05:14:35 PM
by vytautas_lamps
Unusual lamps SeanB~1 0 2645 November 22, 2007, 01:25:23 PM
by SeanB~1
Unusual Metal Halide lamp BlueHalide 3 1529 January 09, 2013, 04:23:04 PM
by AngryHorse
Unusual miniature flat fluorescent Lumex120 8 1631 July 20, 2016, 10:04:39 PM
by Lumex120
Unusual preheat fluorescent wiring BlueHalide 13 2465 July 20, 2018, 07:49:29 PM
by nicksfans
Unusual Slimline Ballast mbulb146 0 1179 September 09, 2014, 08:39:03 PM
by mbulb146
Unusual starting characteristics of CMH bulb « 1 2 » 208Volts 18 2824 October 03, 2022, 01:23:52 AM
by Medved
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