Subject Started by Replies Views Last post
Swapping out bulbs on Christmas lights for LEDs? LightUpMyLife 2 508 December 30, 2022, 11:51:45 PM
by xmaslightguy
An Osram NAV(SON)-E 150W China takes 2 min to restrike? dor123 0 515 December 14, 2021, 10:38:16 AM
by dor123
North American ES probe start QMH lamps overheating their intended ballasts? WorldwideHIDCollectorUSA 0 515 December 21, 2021, 09:04:30 PM
by WorldwideHIDCollectorUSA
How to ID halogen capsules. mdcastle 0 519 March 15, 2023, 02:00:17 PM
by mdcastle
Difference between Sylvania Dulux T/E and Dulux T/E IN CFL lamps? WorldwideHIDCollectorUSA 1 520 December 13, 2022, 10:14:49 AM
by Michael
What are the lowest wattage still obtainable deep yellow HPS lamps? Babayaga 3 521 November 05, 2023, 02:25:49 PM
by Richmond2000
My Venture MH-DE 70W/UVS/PDX shimmering non-stop dor123 2 525 July 06, 2023, 12:13:18 AM
by RRK
GE F32T8/841/PRO/EC vs SPX41 Lightingguy1994 0 529 January 21, 2021, 03:44:37 PM
by Lightingguy1994
History of CFL lamps in Japan WorldwideHIDCollectorUSA 0 532 August 23, 2022, 06:55:05 PM
by WorldwideHIDCollectorUSA
Running a single F20T12 on a 1/2xF32T8 instant start ballast? F40 3 538 November 06, 2023, 03:39:49 AM
by Alights
Why 250 W 3 way bulbs now replaced 100 W or 150 W? Cole D. 2 539 October 02, 2023, 03:41:29 PM
by Cole D.
Purpled out Household LED? Maxim 3 540 August 01, 2023, 03:41:32 AM
by Richmond2000
MOVED: Canadian Leotek Facilities Rommie 0 550 November 23, 2020, 02:51:33 PM
by Rommie
Quality of current made F40T12 Philips Altos Lightingguy1994 1 550 January 02, 2023, 11:37:14 PM
by Lcubed3
Lumen and luminous efficiency reduction of Philips TL-D SUPER-80 tubes bulb_tester2009 3 551 December 11, 2022, 01:56:24 PM
by James
MOVED: Making a 700w ballast RandomCatPerson 0 554 April 05, 2022, 06:25:06 PM
by RandomCatPerson
Why mercury free HPS lamps, are less efficient than standard HPS lamps? dor123 0 555 August 21, 2022, 07:08:23 AM
by dor123
Guide to North American HID lamps WorldwideHIDCollectorUSA 0 558 January 06, 2022, 02:01:33 AM
by WorldwideHIDCollectorUSA
How the thallium and the indium vapor inside the Philips HPI-T, are unsaturated? dor123 0 558 August 19, 2022, 04:32:35 AM
by dor123
What is your favorite LED retrofit tube for linear fluorescent tube fixtures? WorldwideHIDCollectorUSA 2 563 May 21, 2022, 05:12:55 PM
by LightsoftheWest
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