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Philips_LL93146E_HgCdZn_-_NL_1972_a_m.jpg
1972 Philips LL93146E (Hg Cd Zn, 66 W)Max10/05/26 at 16:06Sammi: It wasn't used for general lighting but rathe...
LL_Alkali_Metals.jpg
Optical emission of alkali metalsMax10/05/26 at 14:49Drew: Very interesting to see that most of them have pre...
Philips_LL93146E_HgCdZn_-_NL_1972_a_m.jpg
1972 Philips LL93146E (Hg Cd Zn, 66 W)Max10/05/26 at 14:30Drew: Very cool lamp! I have never seen anything like th...
Screenshot_2026-05-02_194206.png
GE NA-1 Warming UpDrew07/05/26 at 17:13Drew: @Sammi
That could work if the lamp would fit, I t...
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GE NA-1 Warming UpDrew07/05/26 at 13:35Sammi: We might have a spare one, so if Drew could send t...
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GE NA-1 Warming UpDrew07/05/26 at 12:45Tuopeek: If you can find a spare one Sammi. I think it may ...
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GE NA-1 Warming UpDrew07/05/26 at 11:58Sammi: Whar about using a dewar jacket from an SO lamp.? ...
HQI_spect.jpg
150W PowerstarTuopeek07/05/26 at 10:28Tuopeek: It is an interesting electrode design indeed and q...
Screenshot_2026-05-02_194206.png
GE NA-1 Warming UpDrew07/05/26 at 10:26Tuopeek: I like the idea of using a double walled drinking ...
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GE NA-1 Warming UpDrew06/05/26 at 23:35Drew: Next time I am home I will measure the voltage dur...
HQI_spect.jpg
150W PowerstarTuopeek06/05/26 at 20:28Max: I disagree with your "not too exciting"....
Screenshot_2026-05-02_194206.png
GE NA-1 Warming UpDrew06/05/26 at 20:19Max: Tuopeek - good point about the higher running volt...
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GE NA-1 Warming UpDrew06/05/26 at 20:06Drew: @Tuopeek
That is a good point, I haven't tak...
HQI_spect.jpg
150W PowerstarTuopeek06/05/26 at 19:57Drew: I always thought these were very cool, what an int...
Screenshot_2026-05-02_194206.png
GE NA-1 Warming UpDrew06/05/26 at 19:50Tuopeek: Cool to see it lit. I'd guess running it wit...
VLI-MH1500-U-BT37-1_0.jpg
Venture MH1500/U, 1500W Metal-halide LampEric06/05/26 at 17:57Max: It can't possibly be aimed at general lightin...
VLI-MH400-U-5K-D7-1_0.jpg
Venture MH400/U/5K, 400W 5000K, Metal-halide LampEric06/05/26 at 17:55Max: That /5K lamp is not a common variant. I'm wo...
VLI-MH1500-U-BT37-1_0.jpg
Venture MH1500/U, 1500W Metal-halide LampEric06/05/26 at 13:22Drew: Goodness, never seen anything above 1000W in a BT3...
VLI-MH1500-U-BT37-1_0.jpg
Venture MH1500/U, 1500W Metal-halide LampEric06/05/26 at 12:48Sammi: Where's me shades welding goggles....? Wonder...
VLI-MH1500-U-BT37-1_0.jpg
Venture MH1500/U, 1500W Metal-halide LampEric06/05/26 at 12:46Ria: Bright little... thing... Mind Blown Cool
VLI-MH1500-U-BT37-1_0.jpg
Venture MH1500/U, 1500W Metal-halide LampEric06/05/26 at 06:20Bulbman256: Now you need to put one of these in an OV-400 and ...
Screenshot_2026-05-02_194206.png
GE NA-1 Warming UpDrew05/05/26 at 12:48Drew: Ahh right, no dewar jacket. I have seen others ope...
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GE NA-1 Warming UpDrew05/05/26 at 06:56Max: Thanks for the tip, I'll definitely try that....
Screenshot_2026-05-02_194726.png
400W Diazo Metal Halide LampDrew05/05/26 at 06:53Max: The operating position of Sylvania's jacketed...
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GE NA-1 Warming UpDrew04/05/26 at 14:26Drew: @Sammi
Thanks!

@Max
Just need two filament tr...
Screenshot_2026-05-02_194726.png
400W Diazo Metal Halide LampDrew04/05/26 at 13:57Drew: @Sammi
Thanks!

@Max
I see, that does make m...
Philips_126564.jpg
Pulsed xenon lamp at low currentMax04/05/26 at 08:04Max: Thank you Sammi! I was really puzzled when I first...
Screenshot_2026-05-02_194726.png
400W Diazo Metal Halide LampDrew04/05/26 at 07:50Max: It's lucky that you got a blue-purple Sylvani...
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GE NA-1 Warming UpDrew04/05/26 at 07:31Max: Awesome shot! It's the first time I see the r...
Westinghouse_450W_Clear_Self-Ballasted_Mercury_Lamp.jpg
Westinghouse 450W Clear SBMV LampRia04/05/26 at 02:31wide-lite 1000: I have NO idea !
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