51   Lanterns/Fixtures / Modern / Re: Need some fun  on: November 30, 2025, 12:29:00 AM 
Started by stillaintjeff24 - Last post by stillaintjeff24
How much is shipping to central Florida?
 52   Lanterns/Fixtures / Modern / Re: Need some fun  on: November 30, 2025, 12:21:48 AM 
Started by stillaintjeff24 - Last post by wide-lite 1000
I have that ballast! Just got it today* but no 35 watt High pressure sodium lamps. Too bad! I need to get some more diverse lamps.

 I have a few 35w HPS . I'll never use them .  If you pay shipping , I'll send them to you .
 53   Lanterns/Fixtures / Modern / Re: Need some fun  on: November 29, 2025, 11:01:44 PM 
Started by stillaintjeff24 - Last post by WorldwideHIDCollectorUSA
An individual lamp is 3.25A and each lamp is half the arc voltage drop (135V) of a 1000W M47 probe start metal halide lamp (270V). When a pair of 400W M59 probe start metal halide lamps are wired as a series pair, the arc voltage drops of both lamps sum up together at roughly 270V.
 54   Lanterns/Fixtures / Modern / Re: Need some fun  on: November 29, 2025, 10:59:40 PM 
Started by stillaintjeff24 - Last post by stillaintjeff24
Isn’t one 400 3.25 amp? Or is two together 3.25 amp?
 55   Lanterns/Fixtures / Modern / Re: Need some fun  on: November 29, 2025, 10:58:23 PM 
Started by stillaintjeff24 - Last post by WorldwideHIDCollectorUSA
You could run both of them in series, but I would recommend reducing the capacitor value to ensure they run properly. You would need to get a clamp meter to ensure that they are running at the proper 3.25A they require.
 56   Lanterns/Fixtures / Modern / Re: Need some fun  on: November 29, 2025, 10:56:42 PM 
Started by stillaintjeff24 - Last post by stillaintjeff24
How mad would it be to run two 400 watt metal halide lamps in series on a 1000 watt halide ballast?
 57   Lanterns/Fixtures / Modern / Re: Need some fun  on: November 29, 2025, 10:55:46 PM 
Started by stillaintjeff24 - Last post by stillaintjeff24
I have that ballast! Just got it today* but no 35 watt High pressure sodium lamps. Too bad! I need to get some more diverse lamps.
 58   Lanterns/Fixtures / Modern / Re: Need some fun  on: November 29, 2025, 10:54:26 PM 
Started by stillaintjeff24 - Last post by WorldwideHIDCollectorUSA
I think one idea might be to use a 70W M98 pulse start metal halide HX ballast to run a pair of 35W S76 high pressure sodium lamps in series. Or another idea is to import lamps, ballasts, and fixtures from abroad if you can save up for them. I often do that to help me from not getting bored.
 59   Lanterns/Fixtures / Modern / Need some fun  on: November 29, 2025, 10:52:01 PM 
Started by stillaintjeff24 - Last post by stillaintjeff24
I have a few magnetic ballasts, but the problem is I am bored. Anything I can do that would be fun ( except watching lamps warm up) with these ballasts without hurting any lamps or equipment?
 60   General / General Videos / Re: Very sad news from California  on: November 29, 2025, 08:06:16 PM 
Started by RandomCatPerson - Last post by fluorescent lover 40
Not surprised unfortunately. It's just cheaper to do a full changeout especially considering the age of the installation as keeping any of the existing stuff would be a hassle down the line (in their eyes).

San Diego still had a few series circuits when I went down there and went to quite a few places a few years back, though what I saw was mainly HPS. Not sure if any of it is still around today. One of the segments from that same news channel also shows some series LPS if I recall correctly.
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