Subject Started by Replies Views Last post
Where will the Big 3 Move Their LED Manufacturing? CEB1993 6 1636 December 10, 2017, 10:37:27 PM
by HomeBrewLamps
Which company do you think is the best for fittings? thornemi 0 1244 June 15, 2011, 07:05:04 PM
by thornemi
Which halides are used in the Philips CosmoWhite CPO-TW lamps? dor123 6 2612 October 08, 2010, 06:09:38 PM
by Kev
Which light colour temperature do you prefer ? « 1 2 3 » Jovan 31 6497 November 28, 2019, 02:39:13 PM
by Jovan
Which light source is better for use in dusty areas (HPS or LED) Jovan 13 2731 February 02, 2020, 09:49:46 AM
by migette1
Which North American F40T12 fluorescent tubes are pure triphosphor tubes? WorldwideHIDCollectorUSA 2 716 April 09, 2022, 05:05:05 AM
by Silverliner
Which preheat fluorescent starting method gives the longest tube life? WorldwideHIDCollectorUSA 7 1013 March 18, 2022, 05:20:11 AM
by WorldwideHIDCollectorUSA
Which SBMV lamp is recommended? Osram, Philips or Yaming? dor123 3 1969 February 11, 2013, 12:18:36 PM
by dor123
Which starter is suitable for 2x8W T5 lamps in series operation? dor123 12 3076 October 28, 2012, 12:13:16 PM
by Medved
Which uses more mercury, lamps with mercury in it or incandescent? TudorWhiz 9 4034 March 24, 2009, 08:33:00 PM
by Medved
white high pressure sodium « 1 2 » Richmond2000 21 1939 October 23, 2023, 04:41:53 AM
by WorldwideHIDCollectorUSA
White light hi-output LED system: Why phosphor and not RGB based? lights*plus 9 1830 September 30, 2020, 02:22:46 AM
by Medved
White sodium SDW marcopete87 9 734 December 10, 2022, 12:58:49 PM
by marcopete87
White SON SDW-T Gear MetalHalideHater 3 1134 December 07, 2015, 02:03:33 AM
by dor123
Who came up with idea first? vytautas_lamps 7 2285 February 20, 2019, 05:31:24 PM
by James
who has a collection bulbs philips ALTO? « 1 2 3 » giancraloHPS 31 8165 August 08, 2015, 07:10:22 PM
by sol
Who makes better Halogen Floods:GE or Sylvania Lightguy 2 1371 April 17, 2012, 11:50:57 PM
by RyanF40T12
Who Makes Quality T5 28W Tubes? John 9 1086 February 28, 2021, 04:57:15 PM
by Medved
Why 250 W 3 way bulbs now replaced 100 W or 150 W? Cole D. 2 545 October 02, 2023, 03:41:29 PM
by Cole D.
Why 3500K called white and not 5500K or 5000K? dor123 10 1249 March 08, 2023, 10:42:50 PM
by WorldwideHIDCollectorUSA
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