31   Lamps / Modern / Re: Japanese E17 base incandescent lamps for general lighting why?  on: June 03, 2023, 11:43:07 PM 
Started by WorldwideHIDCollectorUSA - Last post by Robotjulep
They used intermediate base because it was compact and could handle more watts than candelabra could. In Japan, it is common to have incandescent chandeliers and wall sconces with mini "krypton" lamps that are very high intensity for example a 55w krypton lamp puts out a little more intense light than a standard 60w a19 lamp with the same amount of lumens. Japanese love compact, yet useful items. For example, their transport trucks are smaller than the ones in the USA, their cobrahead streetlamps are quite compact as well as remotely ballasted, and another example is appliances. In Japan since there is not as much land, they had to innovate and engineer things to be compact, yet equivalent to their counterparts made in USA. The downsides to intermediate base incandescent lamps is they can get very hot and not last as long as medium base lamps. But intermediate base socket is more durable than candelabra so replacing lamps often doesn't damage the lamp holder as it might on candelabra.
 32   Lamps / Modern / Easy way to obtain Japanese Mercury Vapor and HID lamps  on: June 03, 2023, 11:21:15 PM 
Started by Robotjulep - Last post by Robotjulep
Fellow lighting enthusiasts, here is a way to obtain rare HID and many old conventional lamps. First, you will need to have at least 2 weeks to plan a trip to Japan. Next, you should bring a large suitcase or so don't overpack (save room for lamps and stuff you may obtain). Then, you need be able to access transportation such as bus, car, or train. Next, you want to go to a dilapidated, abandoned hotel that is secluded. Inside the hotel are thousands of old conventional lamps that are hard to find anywhere else. If you don't like the suitcase exporting method, you could mail them overseas back to the location you want them. But it isn't going to be cheap. Japan has a lot of dilapidated, forgotten buildings of the 1980s era that are likely to be demolished and the lamps and fixtures are never used again and end up in the bin. I have explored many dilapidated buildings and they had a lot of unique stuff. Just watch out for squatters because they can be aggressive. My favorite building I explored was "Kinugawa Kan." located in 36.835728, 139.721111 . The district is trying to demolish it but they haven't been able to. This hotel has a lot of FPL, Circulene, Linear, and compact Fluorescent lamps. It also has some mercury vapor lamps in the large rooms. But the best dilapidated hotel to get HID lamps is located in Motegi. It is called "Motegi Green Hill Resort" It is located in 36.592970, 140.150538 . Inside the basement spare lamps room are brand-new HID lamps of many kinds. I was only able to get an FDL lamp because my backpack was too full, unfortunately. Otherwise, I would have grabbed as much mercury lamps I could take. Anyways, just be careful about exporting mercury lamps in suitcases as they might not allow it due to Minamata Convention. However, it says you can take glass lightbulbs and CFLs on a plane so it might actually work with HID. Any thoughts? :racc:  :btclrbnder:  :a_mv: :btclrmerc:
 33   Lamps / Vintage & Antique / Hospital 3 way bulbs?  on: June 03, 2023, 10:32:45 PM 
Started by Cole D. - Last post by Cole D.
Looking on eBay today, I came across some listing for vintage
3 way “Hospital bulbs”. They are mogul base, but unlike the 100-200-300 wattage ones I’m familiar with in Torchiere lamps, these are 150-250-400 watts.

I’m assuming maybe these were used for lights in ORs? I haven’t seen any mogul sockets for these either, the ones I’ve seen in most mogul 3 way lamps are rated at 300 W maximum.

I did a quick search on here but didn’t notice anything about these bulbs.
 34   Lanterns/Fixtures / Modern / Re: Why do so many people dislike 3000K halophosphate warm white fluorescent lamps?  on: June 03, 2023, 07:59:48 PM 
Started by WorldwideHIDCollectorUSA - Last post by RRK
Probably because of its unbalanced light and poor color rendering. People are habituated with 3000K sources having 100% CRI. I like similar old-school pink color (orange phosphor + mercury) though  not for general lighting, but for retro neon sign look.
 35   Lamps / Modern / Re: Running a probe-start metal halide lamp base down. OK or avoid?  on: June 03, 2023, 07:10:06 PM 
Started by RRK - Last post by RRK
Yes, Kapton is a weird high-temp material. I was impressed when a piece of Kapton tape generally kept its shape in the flame *when visibly started to glow red* !
 36   Lamps / Modern / Re: Running a probe-start metal halide lamp base down. OK or avoid?  on: June 03, 2023, 06:39:48 PM 
Started by RRK - Last post by Mandolin Girl
After the silicone fingers melted slightly, we wrapped them with Kapton Tape  :wndr:
 37   Lamps / Modern / Re: Running a probe-start metal halide lamp base down. OK or avoid?  on: June 03, 2023, 06:36:18 PM 
Started by RRK - Last post by RRK
Yes, silicone does not melt because of cross-linked nature of the polymer. It will start to deteriorate when used at more than about ~200C though, but probably OK in this case. The jaws on mine were lined with cork, which is not as plastic as silicone, and will not have a peace of mind to run a heavy lamp vertically without some extra backup.
 38   Advertisements / Wanted / Re: Request for information for non-member  on: June 03, 2023, 06:34:58 PM 
Started by Rommie - Last post by fluorescent lover 40
Info on the lights I believe he is talking about can be found here.

Hopefully our European members can help him out.
 39   Advertisements / Wanted / Request for information for non-member  on: June 03, 2023, 06:21:08 PM 
Started by Rommie - Last post by Rommie
The admin team have received a request from a non-member, he doesn't want to join so I offered to post his request on his behalf, hopefully someone here will know something about these items, I have no idea myself.

If anyone can help, let me know and I'll pass on the information.

I have an in-home service ssue with twenty-year-old ALKCO/Philips
LIN40 units.  Need some help re parts availability and/or suppliers.
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