Last comments - Photo Gallery

Last comments

Classic American 100W BT25 mercury lamp in operationMax14/09/25 at 06:31Max: Me too, especially it this BT25 configuration with...

Impact of mercury (and lack thereof) on the design of HPS lampsMax14/09/25 at 06:25Max: The physics behind the high-pressure sodium lamp i...

Fun with vacuum and high voltageMax14/09/25 at 05:53Max: Digging those pictures also reminded me that I sho...

Impact of mercury (and lack thereof) on the design of HPS lampsMax13/09/25 at 10:39Tuopeek: Interesting Max to hear the first lamps were devel...

Fun with vacuum and high voltageMax13/09/25 at 10:30Tuopeek: Great little demo, inspires me to clear my bench i...

Display/Optic lamp Sharxs HTITuopeek13/09/25 at 07:35Max: Good. Better be on the safe side with those lamps,...

Philips HalogènA 150w347vPowerlite13/09/25 at 07:21Max: It's quite bold to set the price of a domesti...

Philips Ceramalux C150S63/Retrolux347vPowerlite13/09/25 at 07:17Max: Yes, there's something fishy with your HX bal...

Industrial F40T12/CG Cool Green347vPowerlite13/09/25 at 07:09Max: I could see some small-scale lamp manufacturing op...

GEC 130W Carbon Heater LampRia13/09/25 at 07:08Max: Yes they have, although they certainly are becomin...

GEC 130W Carbon Heater LampRia12/09/25 at 01:36Ria: They still have their uses Bulb Man

Industrial F40T12/CG Cool Green347vPowerlite10/09/25 at 18:35347vPowerlite: The only address I was able to find was this build...

Philips Ceramalux C150S63/Retrolux347vPowerlite10/09/25 at 18:34347vPowerlite: I don't think it was a problem with the lamp ...

Philips HalogènA 150w347vPowerlite10/09/25 at 18:32347vPowerlite: Yeah, I guess Philips was definitely aiming for th...

Display/Optic lamp Sharxs HTITuopeek07/09/25 at 20:52Tuopeek: Definitely under running it and only for a short t...

Display/Optic lamp Sharxs HTITuopeek07/09/25 at 11:11Max: Also, be extremely careful even if you place a UV-...

Display/Optic lamp Sharxs HTITuopeek07/09/25 at 10:12Tuopeek: Thanks for the UV-A warning Max and interesting ba...

Display/Optic lamp Sharxs HTITuopeek07/09/25 at 10:01Max: Those compact specialty metal halide lamps pack so...

Philips HalogènA 150w347vPowerlite07/09/25 at 09:34Max: That's not cheap for a tungsten-halogen lamp,...

Philips Ceramalux C150S63/Retrolux347vPowerlite07/09/25 at 09:31Max: Peculiar that your lamp failed to ignite. Unless i...

Industrial F40T12/CG Cool Green347vPowerlite07/09/25 at 09:28Max: It's a possibility indeed. Do you know where ...

Electripak 125w MV347vPowerlite07/09/25 at 09:25Max: This is indeed a technically correct description o...

Philips SL*18/27 Earth Light347vPowerlite06/09/25 at 17:40347vPowerlite: Interesting! It makes sense to justify the added c...

Philips Ceramalux C150S63/Retrolux347vPowerlite06/09/25 at 17:38347vPowerlite: Thanks, I was wondering what the purpose of that l...

Electripak 125w MV347vPowerlite06/09/25 at 17:35347vPowerlite: Thanks for the detailed writeup about the history ...

Industrial F40T12/CG Cool Green347vPowerlite06/09/25 at 17:31347vPowerlite: I agree, the colour is quite unique for a fluoresc...

Industrial F40T12/CG Cool Green347vPowerlite05/09/25 at 09:25Max: It's truly amazing that the "cool green&...

GEC 130W Carbon Heater LampRia05/09/25 at 09:15Max: It's quite surprising how long those carbon f...

RLOD#20 (2020.05.26) 1998 Philips DL 50Max05/09/25 at 09:11Max: That's your rebel side showing up there Wink

Sylvania LU50347vPowerlite05/09/25 at 09:10Max: Ria, we had BT-shaped lamps in Europe, those were ...

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