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Why are clear lenses on street lamps a thing in Europe and not in the USA? |
HomeBrewLamps |
10 |
2381 |
May 13, 2019, 01:35:47 AM
by Medved |
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Why are cobraheads the most collected outdoor luminaire? |
LightsoftheWest |
10 |
913 |
June 17, 2022, 09:15:25 AM
by Burrito |
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Why are cyan LEDs SO EXPENSIVE? |
Binarix128 |
7 |
1541 |
October 29, 2020, 07:25:39 PM
by Xytrell |
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Why are explosion proof fixtures are expensive??? |
lightinglover8902 |
2 |
1304 |
May 09, 2019, 06:23:19 AM
by Roi_hartmann |
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Why are good quality arms so expensive? « 1 2 » |
Metal Halide Boy |
18 |
1782 |
February 22, 2021, 07:50:58 PM
by Ash |
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Why are lag type autotransformer fluorescent ballasts rarely called HX? |
WorldwideHIDCollectorUSA |
1 |
503 |
November 10, 2021, 04:27:12 AM
by Medved |
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Why are lead-acid batteries used in rechargable lanterns? |
HomeBrewLamps |
7 |
1607 |
June 24, 2018, 02:03:06 PM
by nogden |
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Why are LEDs now beginning to replace almost all kinds of light sources? |
bulb_tester2009 |
8 |
1443 |
March 03, 2023, 02:55:02 PM
by kai |
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Why are photocell sockets adjusted with the arrow pointing north? |
Cole D. |
3 |
2404 |
October 15, 2018, 01:16:31 AM
by Medved |
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Why are so many members opposed to using step up transformers? |
WorldwideHIDCollectorUSA |
5 |
770 |
April 24, 2021, 06:56:28 PM
by Binarix128 |
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Why Are the Inner Tubes on 4-Lamp F40 Troffers Dimmer Than the Outer Ones |
mrboojay |
10 |
2395 |
December 08, 2013, 03:48:33 PM
by mrboojay |
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Why are there 2 different nominal arc voltages and currents for 100w MV lamps? |
WorldwideHIDCollectorUSA |
0 |
523 |
November 11, 2020, 03:48:49 AM
by WorldwideHIDCollectorUSA |
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Why can't a light be made with just gas in a tube? |
OgreVorbis |
5 |
704 |
February 23, 2021, 02:58:10 AM
by Medved |
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Why can't HID lamps preheat-start « 1 2 » |
imj |
16 |
3751 |
May 04, 2021, 07:53:41 AM
by Medved |
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Why did most countries adopt European specification lighting? |
WorldwideHIDCollectorUSA |
12 |
2038 |
August 09, 2021, 07:47:25 PM
by WorldwideHIDCollectorUSA |
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Why did SOX lamps use B22 bases? |
WorldwideHIDCollectorUSA |
2 |
1072 |
October 22, 2020, 11:45:42 PM
by takemorepills |
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Why did the Philips logo disappear? |
Prismatic |
8 |
2497 |
September 13, 2009, 02:43:32 PM
by Medved |
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Why do 120-127v Latin American countries have a mix of NA and EU lighting? |
WorldwideHIDCollectorUSA |
1 |
488 |
October 02, 2021, 05:43:36 AM
by Medved |
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Why do amalgam non integrated CFLs striate on startup even at room temperatures? |
70HPS |
1 |
603 |
October 13, 2022, 02:26:11 AM
by Medved |
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Why do CFLs and Fluorescent lights change color when warming up? |
F96T12 DD VHO |
2 |
1341 |
May 11, 2018, 10:52:55 AM
by Ash |
