Last comments - Photo Gallery

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Last comments - Max's Gallery

Surprisingly good bottom-tier green metal halide lampMax27/07/26 at 10:20Max: Cerium halides were studied for a use in HID lamps...

Surprisingly good bottom-tier green metal halide lampMax26/07/26 at 21:40Drew: Wow, never heard of cerium used for anything reall...

Surprisingly good bottom-tier green metal halide lampMax24/07/26 at 09:42Max: Maybe I was too harsh when I classified this lamp ...

Surprisingly good bottom-tier green metal halide lampMax23/07/26 at 21:32Tuopeek: Pulsrite does seem to be quite common and manufact...

Surprisingly good bottom-tier green metal halide lampMax23/07/26 at 17:21Drew: Very nice, I remember seeing these throughout ebay...

Last remaining conventional streetlights 5Max15/07/26 at 01:59Ria: It always seems to find its way down the back of m...

Last remaining conventional streetlights 5Max14/07/26 at 18:47Max: What's wrong with the cold white powder, Ria?...

GE Genura in detailsMax14/07/26 at 18:43Max: That's correct! That radial pattern in the si...

GE Genura in detailsMax13/07/26 at 14:42Tuopeek: @Ria: Engineers just love exploded diagrams. I reb...

Last remaining conventional streetlights 5Max13/07/26 at 12:29Ria: It's a good photo, but you can keep the white...

GE Genura in detailsMax13/07/26 at 12:28Ria: Exploded..? That doesn't sound very good :po...

GE Genura in detailsMax13/07/26 at 06:34Max: Indeed. Also, what I did not mention is that the b...

Last remaining conventional streetlights 5Max13/07/26 at 06:30Max: Exactly what I thought when I picked this photo se...

GE Genura in detailsMax12/07/26 at 18:00Tuopeek: It goes to show a lot of the build costs in these ...

Last remaining conventional streetlights 5Max12/07/26 at 17:56Tuopeek: Good timing with a nice cooling winter scene whil...

RLOD#39 (2020.06.28) 2017 Venture HIT250W/HOR/DU/4.5KMax03/07/26 at 15:43Max: Osram was the first lampmaker to introduce this co...

Philips Historische Producten museum Eindhoven (7/53)Max03/07/26 at 15:38Max: 3-colors fluorescent lamps can be made with a sing...

Philips Historische Producten museum Eindhoven (7/53)Max03/07/26 at 11:29Tuopeek: Can't imagine it's all the easy to manuf...

RLOD#39 (2020.06.28) 2017 Venture HIT250W/HOR/DU/4.5KMax03/07/26 at 11:23Tuopeek: Making metal halides suitable to run on both HPS a...

Philips Historische Producten museum Eindhoven (13/53)Max29/06/26 at 15:23Ria: Yes, I had one many years ago (1970s) but it has l...

Philips Historische Producten museum Eindhoven (13/53)Max29/06/26 at 09:00Max: I agree, the colored crown-silver lamps are really...

Philips Historische Producten museum Eindhoven (13/53)Max28/06/26 at 15:47Ria: I like the coloured crown-silver lamps. I have a f...

2000 Philips SON-HC 220WMax28/06/26 at 11:33Max: C refers to the clear bulb indeed. The light outpu...

2000 Philips SON-HC 220WMax28/06/26 at 10:51Tuopeek: I presume the C in SON-HC is for Clear. Good to se...

Philips Historische Producten museum Eindhoven (19/53)Max28/06/26 at 10:02Max: Not sure. I'll need to look it up.

Philips Historische Producten museum Eindhoven (19/53)Max28/06/26 at 06:07Ria: What acid is used..? Wonder

RLOD#38 (2020.06.27) 1972 Sylvania 150PAR/SP/AMax28/06/26 at 06:06Ria: I think I have some of these somewhere, not sure, ...

RLOD#38 (2020.06.27) 1972 Sylvania 150PAR/SP/AMax26/06/26 at 14:04Max: The MR16s with a colored primary mirror are also v...

Philips Historische Producten museum Eindhoven (19/53)Max26/06/26 at 13:57Max: I think that table top is made of a resin such as ...

RLOD#38 (2020.06.27) 1972 Sylvania 150PAR/SP/AMax26/06/26 at 03:10Eric: I agree with Ria...something special about dichroi...

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