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In North America, why were F32T8 U bend tubes never made in the U3 form? |
WorldwideHIDCollectorUSA |
0 |
128 |
February 27, 2024, 03:43:22 PM
by WorldwideHIDCollectorUSA |
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Driving the Iwasaki H50 with resistive ballast - success |
Laurens |
1 |
131 |
April 11, 2024, 02:46:40 PM
by RRK |
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Please help me identify this yellow stick CFL toy, an LED makes it turn on. |
Mem756 |
2 |
170 |
March 09, 2024, 11:50:13 PM
by LightsAreBright27 |
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ITT 70W 55V HPS Yard Light Troubleshooting |
Maxim |
5 |
171 |
April 23, 2024, 06:01:44 PM
by Medved |
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Reducing Ballast Wattage |
Multisubject |
4 |
179 |
April 21, 2024, 05:40:51 PM
by Richmond2000 |
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I figured some things out since my metal halide question, but... |
Multisubject |
6 |
212 |
April 13, 2024, 11:40:03 AM
by Multisubject |
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Any way to recover worn etching? |
LightsAreBright27 |
4 |
235 |
March 01, 2024, 03:19:19 PM
by BT25 |
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Retrofit sodium lamp questions... |
Multisubject |
7 |
266 |
April 18, 2024, 12:24:05 AM
by icefoglights |
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Showing the invisible ultraviolet spectrum lines of a Narva NFC 80w lamp |
Laurens |
1 |
280 |
January 23, 2024, 05:34:55 PM
by Rommie |
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"Cooper XP25" |
CooperOVZ15 |
0 |
292 |
November 02, 2023, 02:52:43 PM
by CooperOVZ15 |
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The story of the SON forest |
veso266 |
6 |
319 |
April 09, 2024, 04:49:29 PM
by veso266 |
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Blacklight CFL autopsy - correct voltage drop? |
Laurens |
2 |
336 |
April 17, 2024, 02:56:14 PM
by Laurens |
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HPS deluxe/comfort/deco lamps in lower power ratings? |
Laurens |
7 |
351 |
February 28, 2024, 12:23:49 AM
by Michael |
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HE vs HO fluorescent lamps |
marcin110 |
6 |
354 |
April 10, 2024, 01:57:35 AM
by Medved |
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Have halophosphate fluorescent lamps ever been linked to office fatigue? |
WorldwideHIDCollectorUSA |
8 |
359 |
April 07, 2024, 05:28:59 PM
by Richmond2000 |
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What are your favorite LED retrofit Christmas lamps? |
WorldwideHIDCollectorUSA |
0 |
377 |
December 04, 2022, 02:04:24 PM
by WorldwideHIDCollectorUSA |
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HPS light troubleshooting |
Raymondo |
1 |
392 |
October 14, 2023, 11:38:24 AM
by Robotjulep |
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Engineering question regarding SOX/Neon lamps |
Dark_Photonics |
2 |
397 |
December 01, 2023, 01:46:53 PM
by RRK |
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1980/1981 Philips SL lamp models |
Roland Huisman |
0 |
398 |
October 14, 2023, 06:48:35 PM
by Roland Huisman |
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Any way to look at HID lamps without getting arc eye? « 1 2 » |
Maxim |
15 |
404 |
April 17, 2024, 02:45:32 PM
by RRK |
