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Durable Lamp Etches |
Multisubject |
7 |
2082 |
February 04, 2026, 05:05:52 AM
by dor123 |
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What happens if a lamp explodes in an integrating sphere? |
lightsofpahrump |
3 |
1303 |
February 01, 2026, 05:30:24 PM
by James |
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Effects of external heating on tubular high pressure sodium lamp. |
HomeBrewLamps |
4 |
1186 |
February 01, 2026, 05:07:26 PM
by James |
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Lamp electrodes with thorium oxide or lanthanum oxide? |
Multisubject |
2 |
1009 |
February 01, 2026, 04:55:05 PM
by James |
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Hall of shame - show your *worst* lamps and fixtures |
Laurens |
10 |
2333 |
February 01, 2026, 04:49:12 PM
by wide-lite 1000 |
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What is negative CRI? |
Multisubject |
4 |
1245 |
February 01, 2026, 11:24:03 AM
by dor123 |
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CFLs are no longer available? |
bulb_tester2009 |
13 |
2413 |
February 01, 2026, 11:22:38 AM
by dor123 |
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Questions about the modern use of quartz in lamps |
Multisubject |
8 |
2324 |
February 01, 2026, 11:01:18 AM
by Multisubject |
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What are your lighting pet peeve? « 1 2 3 ... 6 » |
JECWhiz |
85 |
73747 |
January 27, 2026, 04:27:18 PM
by WorldwideHIDCollectorUSA |
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Integral-Starter Preheat Ballasts |
Multisubject |
9 |
2130 |
January 27, 2026, 03:52:14 PM
by Ash |
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European Semiparallel Ignitors? |
Multisubject |
9 |
1760 |
January 23, 2026, 01:03:36 PM
by Ash |
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I found a Unicode character that looks like a post top. |
lightsofpahrump |
3 |
983 |
January 19, 2026, 05:46:52 AM
by dor123 |
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"E" Shape vs "ED" Shape Envelopes? « 1 2 » |
Multisubject |
15 |
2726 |
January 18, 2026, 02:16:06 PM
by Ash |
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More Lamp Calculations Stuff |
Multisubject |
9 |
1664 |
January 18, 2026, 02:06:44 PM
by Ash |
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Unintentional Fluorescent Tube Cannon |
Multisubject |
9 |
1417 |
January 17, 2026, 07:18:34 PM
by Ash |
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Definition of HID Lamps |
Multisubject |
8 |
1108 |
January 17, 2026, 07:08:34 PM
by Ash |
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T10 Fluorescent Lamps |
Multisubject |
6 |
1095 |
January 14, 2026, 05:31:04 PM
by WorldwideHIDCollectorUSA |
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T12 Retrofit Lamp Questions |
Multisubject |
10 |
1599 |
January 14, 2026, 05:16:35 PM
by WorldwideHIDCollectorUSA |
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Operating/Dimming large halogen lamps on 14VDC « 1 2 3 4 » |
HomeBrewLamps |
51 |
23489 |
January 14, 2026, 01:56:33 PM
by HomeBrewLamps |
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Need Help Making a Decision |
NeXe Lights |
4 |
1037 |
January 13, 2026, 10:16:37 PM
by NeXe Lights |
