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LED EOL while turned OFF! |
merc |
6 |
643 |
June 16, 2024, 12:34:17 PM by marcopete87 |
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1980/1981 Philips SL lamp models |
Roland Huisman |
1 |
552 |
June 14, 2024, 07:31:58 AM by TobiTechBoy |
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Lowest color temperature ever achieved for white fluorescent lighting? |
WorldwideHIDCollectorUSA |
11 |
1816 |
June 14, 2024, 07:25:37 AM by TobiTechBoy |
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310W HPS |
Milwaukeeman2003 |
10 |
843 |
June 13, 2024, 04:35:22 AM by fluorescent lover 40 |
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Chemistry of Osram HQI-TS 70W/D and 150W/D |
dor123 |
3 |
600 |
June 09, 2024, 03:49:51 PM by RRK |
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Metallic thallium vs thallium iodide vapour pressure |
dor123 |
3 |
759 |
May 31, 2024, 06:43:08 PM by James |
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Why so many LED lamps not for enclosed fixtures? |
Cole D. |
6 |
728 |
May 30, 2024, 03:48:56 AM by James |
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Why did Japan use low voltage 1000W MV lamps despite being the 100V country? |
WorldwideHIDCollectorUSA |
1 |
517 |
May 29, 2024, 01:27:12 AM by Medved |
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Running SOX lamps in series |
AgentHalogen_87 |
5 |
908 |
May 26, 2024, 06:36:07 AM by LightBulbFun |
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Why do some metal halide lamps have barium getters? |
WorldwideHIDCollectorUSA |
3 |
715 |
May 17, 2024, 01:46:52 AM by Medved |
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What are the electrical specs of PL-C and PL-T CFL lamps with G24d, G24Q bases? |
WorldwideHIDCollectorUSA |
10 |
2419 |
May 11, 2024, 01:53:07 PM by WorldwideHIDCollectorUSA |
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Retrofit sodium lamp questions... |
Multisubject |
10 |
966 |
May 11, 2024, 09:57:12 AM by joseph_125 |
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Chinese EYE mercury lamps? « 1 2 » |
HIDLad001 |
20 |
2566 |
May 11, 2024, 09:30:55 AM by joseph_125 |
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Why do Japanese screw base lamps use the North American designations? |
WorldwideHIDCollectorUSA |
12 |
2185 |
May 11, 2024, 03:33:26 AM by WorldwideHIDCollectorUSA |
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What can I do with an LPS arctube? « 1 2 » |
LightbulbManiac |
15 |
1758 |
May 10, 2024, 08:13:56 PM by Mandolin Girl |
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Why does Japan have so many HID retrofit lamps for mercury vapor ballasts? |
WorldwideHIDCollectorUSA |
9 |
843 |
May 09, 2024, 04:58:43 AM by WorldwideHIDCollectorUSA |
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F4T5 rapid end blackening |
LightsAreBright27 |
3 |
488 |
May 08, 2024, 01:40:04 PM by LightsAreBright27 |
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Sylvania Metalarc M47 Floodlight bulbs |
KarenatWarsash |
4 |
530 |
May 08, 2024, 08:25:31 AM by KarenatWarsash |
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ITT 70W 55V HPS Yard Light Troubleshooting « 1 2 » |
Maxim |
26 |
2064 |
May 07, 2024, 06:37:23 PM by BT25 |
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HPS deluxe/comfort/deco lamps in lower power ratings? « 1 2 » |
Laurens |
16 |
1731 |
May 02, 2024, 03:56:44 AM by Laurens |