BulbCollector Forums
BULB DISCUSSION BOARDS => Modern Electric Lighting => Topic started by: pSlawinski on February 02, 2005, 11:43:58 pm
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Here are some pictures of various incandescent lamps being overrun on a 250 W Metal Halide ballast. The lamps look much better when they are overrun. As with anything that is overrun the lamps do not last long, with the exception of the 60W halogen lamps which you can get well over an hour of runtime out of.
75W Philips Natural Light
(http://www.metal-halide.net/bulbcollectorforumpics/Small/Compare.jpg)
Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/Compare.jpg
I overran a 60W Halogen as well.
Normal:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04511.jpg)
Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04511.jpg
Overrun:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04510.jpg)
Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04510.jpg
Normal:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04502.jpg)
Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04502.jpg
Overrun:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04506.jpg)
Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04506.jpg
Some pictures of fun things to do with these lamps after you’ve burnt them out. (I ran them on a neon sign transformer 9 kV 25 mA)
Halogen Capsule:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04535.jpg)
Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04535.jpg
60W Philips Dura-Max:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04529.jpg)
Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04529.jpg
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The halogen lamp I had been running for about two hours died as I was writing this topic. Needless to say after being overrun at 250W for about two hours the capsule is pretty blackened. Perhaps I will post some pictures of the lamp tommrow.
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After running for about two hours the filament finally split.? After it died took a look at it and the quartz was red hot in the dark areas.? I think if it kept on running for another hour or so the quartz might have failed.
60W Philips Halogen?
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04579.jpg)
Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04579.jpg
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You should try overrunnig a compact fluorescent bulb
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That wouldn't work. I would burn up the ballast very quickly. The only way I could get more current into the tubes for a long enough time to take a picture would be to remove the tubes from the compact fluorescent ballast and put them on the metal halide ballast. Even if I did that the lamp would fail very quickly, the electrodes just aren't made to handle that kind of current.
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Forgive my ignorance here, but what is the purpose of over driving these lamps if their useful life is cut down to two hours? Experimentation and curiosity I assume? I'm not up on store bought bulb prices, but the halogen capsule lamps seem like a waste of $ to destroy, or no? Please enlighten me! :-o
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Yes, this was for the sake of experimentation. I am changing most of my incandescent lamps to compact fluorescent lamps. Instead of throwing the perfectly good lamp away I decided to ruin it first. It is also a lot of fun to see a large amount of light pouring out of something that usually isn’t very bright at all. I do not know exactly how long this lamp will last when overrun because when I started overrunning the lamp it already had a few hours of normal usage on it. These cost about $2.00 without tax last time I checked.
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Hey Phillip,
Thanks for explaining, I understand now? :lol:? Nice pictures too above!
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If you try to overrun one of the little 12v halogen capsules they may explode I have tried overrunnig one before and it glowed brightly for a few seconds and then exploded
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The only low voltage lamp I have overrun is a little flashight bulb.? I do not have a good low voltage power supply.? I also don't have any 12v Halogen capsules.? I like discharge lamps more than incandescent lamps so I don't really really have that many incandescent lamps.
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I will have to agree with you on this one I like discharge lamps better than incandescent lamps
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have you tried overrunning a High Pressure Sodium Lamp
If so I would like to see some pictures
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Yes, I have overrun a HPS lamp before, but it was only because I did not have a proper ballast. Usually overrunning HID lamps does not produce very desirable results. In fact, running discharge lamps of any kind on a ballast that was not specifically intended for that lamp usually leads to less than desirable results. It is also not a good idea to overrun HID lamps due to the risk of explosion. HID lamps operate at a high internal pressure, and by increasing the wattage on the lamp you increase pressure and temperature which can ultimately lead to lamp failure. This is especially true of metal halide lamps; you should never overrun a metal halide lamp by more than a few watts, because they are more likely to explode than most other types of HID lamps.
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Well somehow I managed to overdrive a lamp by accident.? This lamp lives in a touch lamp next to my bed.? When I tapped the fixture to turn it on the filament stuck together which shortened the filament and allowed more current to pass through it.
Normal Lamp:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04706.jpg)
Large Image: http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04706.jpg
Overdriven Lamp:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04707.jpg)
Large Image: http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04707.jpg
Compare:
(http://www.metal-halide.net/bulbcollectorforumpics/Small/DSC04709.jpg)
Large Image: http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04709.jpg
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Here you go mr_big, I found the picture I took of the over driven HPS lamp. This is a 100W Philips lamp. It was run on a 250W metal halide ballast in this picture. I used a plasma lamp to lower the striking voltage of the lamp.
The picture is on this page:
http://www.metal-halide.net/index.php?id=gallery&cat=HID&scat=HPS&bulb=C100S54
I added some pictures of my 1kW Westinghouse MV today as well:
http://www.metal-halide.net/index.php?id=gallery&cat=HID&scat=MV&bulb=H36GW-1000-DX
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Hi .
After reading your posts, I could must to say that I do not agree with these "destructive" practices, unless they were for experimental purposes only, but anyone are free to kill his own bulbs for fun.
All the bulbs in my collection are too valuable for me, and I wouldn't to do with them these unpleasant things.
Al my bulbs (incandescent, high intensity discharge, fluorescent, etc.) came to me (and continues doing today) during years and years of searching, waiting, illusion and expense... too high expense! so, when I? get some strongly desired lamp, these becomes to me as a sort of mysterious and rare treasure, even if the lamp are the simplest and cheapest bulb I could purchase.
Furthermore, in 1983, when the voltage from the transformer at my zone and subsequently at home, was raised from 125 to 220 volts, "Uni?n Fenosa", the local electric distribution company, gave us all the lamps we needed to exchange the old bulbs for new ones at the new voltage. Then I didn't throw away anyone of that 125 volt. bulbs I removed from service, so, today all of them are higly regarded waiting for a serious catalogation, including taking pictures of each one of them, off and on, exactly at the same parameters as when they were at service, at 125v, 50 Hz, to be displayed at my new bulb collecting site that will be online very soon.
Please, don't take this as a criticism to your experiments, heeeeeee.
If you enjoy overruning your obsolete incandescent bulbs for fun, go ahead. But I never could do the same with my old and obsolete ones without a strong affliction.
Very good and nice pictures anyway!
Best regards,
M. Gonz?lez.
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I understand what you are saying, and I agree with you. I would never overdrive my rare lamps. The lamps that I have overdriven are easily obtainable at the hardware store, so if want any more I can just go buy them.
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what other lamps have you overrun
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As it turns out I have over driven several of my lamps.? I must point out the fact that I was not over driving them just for sake of over driving them.? They were over driven because I did not have a proper ballast for the lamps, so I used what was available.? I will include a few links to lamps I have over driven below.
http://www.metal-halide.net/index.php?id=gallery&cat=HID&scat=LPS&bulb=SOX35 over driven @ 250W
http://www.metal-halide.net/index.php?id=gallery&cat=HID&scat=HPS&bulb=C100S54 over driven @ 250W
http://www.metal-halide.net/index.php?id=gallery&cat=HID&scat=MV&bulb=H39KB175 over driven @ 250W
http://www.metal-halide.net/index.php?id=gallery&cat=HID&scat=MH&bulb=MVR175-U over driven @250W
http://www.metal-halide.net/index.php?id=gallery&cat=Incandescent&scat=S&bulb=150BR27-CLEAR over driven @ 250W
Why are these all over driven at 250W?? Because when I ran them that was the only ballast I had.