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Westinghouse_S450BT37.jpg
Self-ballasted S450BT37 during operationMax04/12/25 at 23:47Max: That S450BT37 certainly has a very nice design and...
GE_R400H.jpg
Spectral lines Multi-vaporTuopeek04/12/25 at 23:41Max: Nice shot, and the spectrum insert is a very nice ...
BL_g_by.jpg
Black light comparisonTuopeek04/12/25 at 23:35Max: Thank you for posting such a nice comparison. The ...
SONunderSOX.jpg
SON under SOXTuopeek04/12/25 at 23:30Max: Nice experiment! The sodium vapor in HPS lamps has...
Sylvania_BA_575-2_DE_BriteArc.jpg
Sylvania BA 575/2 DE BriteArc LampRia04/12/25 at 23:20Max: With an arc gap of 7 mm, it is more akin to HMIs w...
Sylvania_BA_575-2_DE_BriteArc.jpg
Sylvania BA 575/2 DE BriteArc LampRia04/12/25 at 18:17Tuopeek: Looks similar to the Sharxs HTI lamp I have, which...
Sylvania_BA_575-2_DE_BriteArc.jpg
Sylvania BA 575/2 DE BriteArc LampRia03/12/25 at 14:09Sammi: Yes, it would be nice to see it litted Cool
Philips_Spectraal_RbII_-_NL_m1960s_a.jpg
Mid-1960s Philips Spectraal RbIIMax28/11/25 at 17:44Ria: The rubidium lamp is our favourite, it's a be...
Philips_Spectraal_RbII_-_NL_m1960s_a.jpg
Mid-1960s Philips Spectraal RbIIMax28/11/25 at 15:13Tuopeek: The rubidium discharge is quite fascinating and ha...
SONunderSOX.jpg
SON under SOXTuopeek23/11/25 at 19:34Tuopeek: Thanks, Yes, I have often played with low pressure...
SONunderSOX.jpg
SON under SOXTuopeek23/11/25 at 16:05Ria: Interesting. Seen SOX under SOX before, but never ...
BL_g_by.jpg
Black light comparisonTuopeek20/11/25 at 22:46Tuopeek: Thanks, Eye seemed to have the market in these ori...
Philips_C150021ED37_-_USA_1993.jpg
1993 Philips C1500/ED37Max19/11/25 at 03:40347vPowerlite: Interesting! I didn't know Philips experiment...
BL_g_by.jpg
Black light comparisonTuopeek19/11/25 at 03:35347vPowerlite: Interesting comparison! I have a generic 400w MV b...
GE_R400H.jpg
Spectral lines Multi-vaporTuopeek18/11/25 at 19:50Ria: Been there, done that Mr. Green
GE_R400H.jpg
Spectral lines Multi-vaporTuopeek18/11/25 at 18:03Tuopeek: Thanks Ria, I certainly had to suffer temporary bl...
BL_g_by.jpg
Black light comparisonTuopeek18/11/25 at 18:02Tuopeek: It's definitely a weird lamp. The mercury bit...
BL_g_by.jpg
Black light comparisonTuopeek17/11/25 at 21:01Sammi: You can certainly tell the difference in quality ...
GE_R400H.jpg
Spectral lines Multi-vaporTuopeek17/11/25 at 20:57Ria: Oh wow, this is amazing Bulb Man
Westinghouse_S450BT37.jpg
Self-ballasted S450BT37 during operationMax17/11/25 at 19:24AgentHalogen_87: That's a brilliant design having two filament...
20251109_145247.jpg
Twin lamp SRM half brightAgentHalogen_8717/11/25 at 18:39AgentHalogen_87: Yes, that's true. Pity that style wasn't...
20251109_115649.jpg
Philips SRM custom twin lampAgentHalogen_8717/11/25 at 18:35AgentHalogen_87: I know Smile But I don't have the parts for a S...
multimetal_halide.jpg
Multi Vapor Halide Tuopeek17/11/25 at 16:44Tuopeek: It was an eBay buy but I think from an electrical ...
multimetal_halide.jpg
Multi Vapor Halide Tuopeek17/11/25 at 05:41Max: Did you buy it, or was it given to you? What you h...
Westinghouse_S450BT37.jpg
Self-ballasted S450BT37 during operationMax17/11/25 at 05:35Max: Thank you, you two!

Tuopeek - Dealing with thos...
BL400.jpg
One good, one badTuopeek17/11/25 at 05:28Max: Interesting! Can you please post lit pictures of t...
BL400.jpg
One good, one badTuopeek17/11/25 at 00:57Sammi: That's what I was thunking, if the enveplop i...
BL400.jpg
One good, one badTuopeek16/11/25 at 22:15Tuopeek: Thanks Sammi, I now have to go and weigh these lam...
BL400.jpg
One good, one badTuopeek16/11/25 at 21:35Sammi: IIRC, proper Woods glass weighs a good deal more. ...
BL400.jpg
One good, one badTuopeek16/11/25 at 21:27Tuopeek: Just looks dark like 'Woods' but definit...
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