Author Topic: 700W Mercury Vapor  (Read 5471 times)
GE M-400A1
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700W Mercury Vapor « on: July 17, 2008, 10:14:59 PM » Author: GE M-400A1
Hey Everyone,

question, i have scene a 700W M-1000 (MV) and do they make 700W MV lamps anymore becuase i have looked and i have scene none. Do they use 1000W balasts or 700W?

Thanks
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Re: 700W Mercury Vapor « Reply #1 on: July 24, 2008, 03:01:49 AM » Author: TudorWhiz
700 watts was discontinued....I think 70s or 80s
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GE M-400A1
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Re: 700W Mercury Vapor « Reply #2 on: July 24, 2008, 02:08:02 PM » Author: GE M-400A1
Thanks!!
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Re: 700W Mercury Vapor « Reply #3 on: July 24, 2008, 04:27:28 PM » Author: Silverliner
Actually, EYE/Iwasaki still makes 700w mercury lamps to this day. Philips discontinued theirs in 2003, GE discontinued in the 90s, and Sylvania discontinued in the 80s.
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Re: 700W Mercury Vapor « Reply #4 on: July 24, 2008, 04:31:34 PM » Author: form109
do they still sale,or did they ever sale 700 watt mercury vapor ballasts?
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Re: 700W Mercury Vapor « Reply #5 on: July 25, 2008, 12:20:29 AM » Author: arcblue
700w mercury vapor M1000's, AE327's & Westinghouse OV-50's were common on the freeways in Washington State. Ballasts are of course no longer manufactured, and EYE/Iwasaki is the only manufacturer of 700w merc lamps now, and only in the coated (/DX) style. I guess I'm lucky that I happen to own a clear Westinghouse 700w merc, albeit a very, very worn out one (still lights though according to the person who gave it to me).
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Re: 700W Mercury Vapor « Reply #6 on: July 25, 2008, 03:25:52 AM » Author: Silverliner
700w mercury lights were also very common on the freeways in California on the taller 35' light poles that first went in use around '69 and became the standard in the 70s. Fixtures were M-1000s, 327s, and OV-50s with glareshields. Some of these are still in use here in Southern California but they are all now 400w mercury since the 700w lamps and parts have become hard to find.
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Re: 700W Mercury Vapor « Reply #7 on: July 25, 2008, 10:56:51 AM » Author: Foxtronix
Never I'll be able to get a high wattage MV. MAYBE some 1000W HPS fixtures in the parking lot of a shopping center that they seem to be old and will maybe be replaced soon...
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Re: 700W Mercury Vapor « Reply #8 on: July 27, 2008, 10:46:18 PM » Author: GE M-400A1
Thanks guys!
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Re: 700W Mercury Vapor « Reply #9 on: April 16, 2017, 07:53:14 AM » Author: troyp1978
i brought a couple of new 700w mv ballasts last year and 18 new 700w mv lamps
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Re: 700W Mercury Vapor « Reply #10 on: April 16, 2017, 06:41:12 PM » Author: AngryHorse
I don`t suppose it matters now to the original poster, as this thread is nearly 10 years old, but the actual way to run a 700watt merc is with two, (a 400 and 250watt), MV ballasts in parallel. ;)   
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Re: 700W Mercury Vapor « Reply #11 on: April 16, 2017, 11:22:06 PM » Author: BlueHalide
I have a 700w MV ballast that was removed from a decommissioned high mast fixture that was previously lighting a freeway in WI. Theres a pic of it in my gallery somewhere. Never came across a 700w lamp though
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Re: 700W Mercury Vapor « Reply #12 on: April 17, 2017, 01:20:48 AM » Author: dor123
I think european and american 700W MV lamps aren't the same in electrical characteristics and requires different ballasts.
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Re: 700W Mercury Vapor « Reply #13 on: April 28, 2017, 11:50:28 PM » Author: ultralume
I've successfully run 700 Watt bulbs on a 1000 Watt mercury CWA ballast by changing the capacitor. I don't remember the exact value but I vaguely remember replacing 24 uF with 18 uF
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Re: 700W Mercury Vapor « Reply #14 on: July 30, 2018, 03:58:43 PM » Author: sox35
Running any lamp on a ballast not designed for it runs the risk of under- or over-running the lamp and/or ballast, with life-limiting issues for both.
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