Subject Started by Replies Views Last post
Why the EU banned the HG free HPS lamps? dor123 10 2510 May 17, 2018, 07:02:18 PM
by lights*plus
Why the Osram Colorstar DSX2 white HPS lamps, described as Citylight DS? dor123 0 654 January 17, 2016, 07:53:38 AM
by dor123
Why the Thron 2D and its adapters, kidnapped from the shelves in the UK? dor123 9 2173 August 09, 2012, 10:41:45 AM
by James
Why tubular HPS more common on European lamps? Cole D. 10 1921 November 26, 2019, 09:21:31 PM
by 589
Why was slimline technology never applied to non-integrated CFL lamps? WorldwideHIDCollectorUSA 3 489 July 30, 2022, 10:32:57 PM
by Foxtronix
Why was there no T8 alternative to the British 8 foot 125w T12 fluorescents? WorldwideHIDCollectorUSA 12 474 April 24, 2023, 12:53:47 PM
by marcopete87
Why were 5000K standard halophosphate fluorescent lamps so unpopular? WorldwideHIDCollectorUSA 4 595 May 16, 2022, 12:29:18 AM
by Medved
Why were mercury free HPS lamps uncommon? HPS_250 7 704 July 30, 2022, 08:56:47 AM
by Mandolin Girl
Why were most North American HID lamps not designed for 120v OCV ballasts? WorldwideHIDCollectorUSA 3 957 August 29, 2021, 05:52:33 AM
by Medved
Why were probe start CMH lamps not developed? WorldwideHIDCollectorUSA 9 1056 March 28, 2021, 01:45:29 PM
by Joe Maurath, Jr.
Why were there no QMH and CMH retrofit lamps made for 55v HPS ballasts? WorldwideHIDCollectorUSA 1 532 October 16, 2020, 02:36:06 AM
by Medved
Why would an entire road of HPS street lamps all leak? « 1 2 » HPS_250 21 3256 March 18, 2020, 10:11:18 PM
by HPS_250
Wifi Connected Smart Bulb « 1 2 3 4 » LightUpMyLife 53 11274 January 19, 2021, 05:44:48 PM
by Miles
Will 13 watt PL-L (2G11 base) work on magnetic RS ballasts? Fluorescent05 3 973 November 09, 2018, 02:39:41 PM
by Fluorescent05
Will 215 OCV make a lamp lose vacuum? Fluorescent05 6 1480 September 17, 2018, 03:38:34 PM
by suzukir122
Will a 175W MH M57 ballast run a 175W MV properly? SOX55W 4 1828 September 02, 2011, 04:20:59 PM
by Ash
Will a 18w SOX lamp be overdriven on a F40T12 preheat ballast? « 1 2 » WorldwideHIDCollectorUSA 19 2844 October 26, 2020, 03:29:51 AM
by WorldwideHIDCollectorUSA
Will a 32 watt PL fluorescent bulb work on a 42w PL fluorescent ballast? « 1 2 » 70HPS 17 1441 September 23, 2022, 02:22:24 AM
by Medved
Will A US spec Ballast Run This ? wide-lite 1000 6 571 August 12, 2022, 04:28:48 AM
by WorldwideHIDCollectorUSA
Will all fluorescent lamps be banned by 2023 EU ecodesign laws? « 1 2 » WorldwideHIDCollectorUSA 28 3199 October 19, 2022, 05:24:26 AM
by funkybulb
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