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For reference: L150 vs 400w MH/MV gear

For reference: L150 vs 400w MH/MV gear

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Shown here is a set-up of 400w MH/MV gear inside a Westinghouse OV-15/L-150. The universal ballast mount seems to hold the M-57/H-33 ballast with room to spare, as well as the cap. However, there's no way to fit the 400w lamp, even with the socket adjusted all the way back...a 400w 'cram-lamp' maybe, but those tend to be problematic. Sure would be bright though!

004_1~17.JPG 001_1~14.JPG 001_1~13.JPG 005_1~22.JPG

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Filename:001_1~13.JPG
Album name:don93s / lighting components
Keywords:Gear
File Size:239 KB
Date added:May 30, 2016
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Date Time:2016:05:30 15:29:02
DateTime Original:2016:05:30 15:29:02
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ace100w120v
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May 30, 2016 at 06:37 PM Author: ace100w120v
Imagine a 400w cram MH!
streetlight98
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May 31, 2016 at 12:55 PM Author: streetlight98
They did make these in 400W MV, called the OV-400, but they must've used a different socket bracket. They never offered them with capacitor ballasts though, just 240V chokes or HX NPF ballasts. Probably because the small housing would generate too much heat and blow the caps. Plus 400W MV in these fixtures was designed to make the fixture cost less, so if people wanted HPF they'd have to use the OV-25. I don't recommend 400W in small fixtures anyway. Too much heat and the optics are deigned for smaller lamps. IMO small fixtures like these should be for 100-250W MV, 50-150W HPS, 175-250W MH, and 50-250W PSMH. That's how it was originally supposed to be when the optics for these fixtures were designed anyway.

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May 31, 2016 at 01:46 PM Author: Solanaceae
I may eventually get more of these, to make 150w s56 hps, and 175w MH or MV.

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Lumex120
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105555521242365640724 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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May 31, 2016 at 01:59 PM Author: Lumex120
I really hope I can get one. I haven't asked yet.

Any machine is a smoke machine if you operate it wrong enough.

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May 31, 2016 at 02:15 PM Author: wattMaster
Why not "hack" it to fit the bulb?

SLS! <click

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GoL Solanaceae.Keif.Fitz Keif Fitz bubby_keif
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May 31, 2016 at 02:51 PM Author: Solanaceae
I want to find a westy Silverliner to put 400w gear in. And I've seen 400w BT 28 MH lamps.

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streetlight98
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May 31, 2016 at 06:53 PM Author: streetlight98
These really shouldn't have 400W lamps to begin with, despite the fact that they were offered with them, so the better question is "Why not fit it with a proper lamp and ballast?" Sure it will work, but you'll be able to cook an egg on top of the light while it's running.

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Jul 22, 2016 at 08:35 AM Author: Lumex120
The socket in my OV 15 is mounted straight and not at an angle like this. The socket is adjusted all the way forward, and there is still plenty of room. If it was pushed back it might be able to fit an ED37 lamp...

Any machine is a smoke machine if you operate it wrong enough.

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Jul 22, 2016 at 09:13 AM Author: streetlight98
The lamp is supposed to be straight in reference to the reflector for photometric reasons. Since the reflector is angled, the socket should be as well. 400W lamps do fit in these, as they were made in 400W (called the OV-400) but they might have used a modified bracket to allow the lamp to fit. The original silverliner OV-15 was offered in 400W MV too, starting sometime in the 1970s, also called the OV-400. Those things must run HOT! They weren't originally engineered for 400W lamps.

Here's a real OV-400.

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don93s
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Jul 22, 2016 at 05:15 PM Author: don93s
In this pic, I was adjusting the socket to different positions to see if one would allow the lamp to fit.
streetlight98
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Jul 22, 2016 at 06:18 PM Author: streetlight98
does flipping the socket bracket allow the socket to fit? Mine's installed outside right now so I can't easily check but it just came to mind now. My 85W induction lamp just fits, though I had to drill holes in the bracket since for whatever reason they didn't use standard mogul socket mounting hole locations for the induction lamp. You think they would have since it was designed as a retrofit...

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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