 |
 |
Jet-Phillips Lighting Information? |
Burrito |
0 |
1274 |
February 05, 2026, 02:06:12 AM by Burrito |
 |
 |
Durable Lamp Etches |
Multisubject |
7 |
3283 |
February 04, 2026, 05:05:52 AM by dor123 |
 |
 |
What happens if a lamp explodes in an integrating sphere? |
lightsofpahrump |
3 |
2067 |
February 01, 2026, 05:30:24 PM by James |
 |
 |
Effects of external heating on tubular high pressure sodium lamp. |
HomeBrewLamps |
4 |
2130 |
February 01, 2026, 05:07:26 PM by James |
 |
 |
Lamp electrodes with thorium oxide or lanthanum oxide? |
Multisubject |
2 |
1764 |
February 01, 2026, 04:55:05 PM by James |
 |
 |
Hall of shame - show your *worst* lamps and fixtures |
Laurens |
10 |
5346 |
February 01, 2026, 04:49:12 PM by wide-lite 1000 |
 |
 |
What is negative CRI? |
Multisubject |
4 |
2166 |
February 01, 2026, 11:24:03 AM by dor123 |
 |
 |
CFLs are no longer available? |
bulb_tester2009 |
13 |
4350 |
February 01, 2026, 11:22:38 AM by dor123 |
 |
 |
Questions about the modern use of quartz in lamps |
Multisubject |
8 |
3767 |
February 01, 2026, 11:01:18 AM by Multisubject |
 |
 |
Integral-Starter Preheat Ballasts |
Multisubject |
9 |
3592 |
January 27, 2026, 03:52:14 PM by Ash |
 |
 |
European Semiparallel Ignitors? |
Multisubject |
9 |
2994 |
January 23, 2026, 01:03:36 PM by Ash |
 |
 |
I found a Unicode character that looks like a post top. |
lightsofpahrump |
3 |
1689 |
January 19, 2026, 05:46:52 AM by dor123 |
 |
 |
"E" Shape vs "ED" Shape Envelopes? « 1 2 » |
Multisubject |
15 |
5113 |
January 18, 2026, 02:16:06 PM by Ash |
 |
 |
More Lamp Calculations Stuff |
Multisubject |
9 |
3207 |
January 18, 2026, 02:06:44 PM by Ash |
 |
 |
Unintentional Fluorescent Tube Cannon |
Multisubject |
9 |
2608 |
January 17, 2026, 07:18:34 PM by Ash |
 |
 |
Definition of HID Lamps |
Multisubject |
8 |
2006 |
January 17, 2026, 07:08:34 PM by Ash |
 |
 |
T10 Fluorescent Lamps |
Multisubject |
6 |
1867 |
January 14, 2026, 05:31:04 PM by WorldwideHIDCollectorUSA |
 |
 |
T12 Retrofit Lamp Questions |
Multisubject |
10 |
3017 |
January 14, 2026, 05:16:35 PM by WorldwideHIDCollectorUSA |
 |
 |
Operating/Dimming large halogen lamps on 14VDC « 1 2 3 4 » |
HomeBrewLamps |
51 |
29861 |
January 14, 2026, 01:56:33 PM by HomeBrewLamps |
 |
 |
Need Help Making a Decision |
NeXe Lights |
4 |
1845 |
January 13, 2026, 10:16:37 PM by NeXe Lights |