Blacken a HPS Lamps « on: April 23, 2008, 10:02:01 PM » Author: GE M-400A1
Hey Everyone, How would i get a HPS lamp to blacken like some on the ones you guys have pictures of? Would running a 35W Hps on a 50w HPS ballast do it? I really want one that is blackened!    Thanks
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	Re: Blacken a HPS Lamps « Reply #1 on: April 23, 2008, 11:49:12 PM » Author: TudorWhiz
a blackening is caused by leaking, I actually thought about this tonight...but really I am not sure if its possible on purpose cuz theres a risk you can actually END the life of the lamp cuz it would leak fully.......
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	Re: Blacken a HPS Lamps « Reply #2 on: April 26, 2008, 10:12:20 AM » Author: J-Frog
Blackening of the OUTER is caused by leakage, blackening on the ends of the arctube is caused by sputtered electrode material.  You can overpower it which may make it age faster and possibly leak out sooner, but when they usually leak out thats it and they will only glow dimly on a NST!
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	Re: Blacken a HPS Lamps « Reply #5 on: June 19, 2011, 05:47:39 AM » Author: dor123
Ash: I saw HPS and MH lamps that leaking and still works. All of the redded out HPS, that we are seeing in streetlights in Israel, are mostly leaked HPS lamps. Here is a picture of a leaked Osram Powerball HCI-T 70W, in Supersol Deal supermaket, that still operating, but lights dimly.
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	Re: Blacken a HPS Lamps « Reply #6 on: June 19, 2011, 11:20:55 AM » Author: AngryHorse
Er,,,,,,why do you want a black one? , the new GE 250watt Lucalox seem to do it on their own , we have 2 in the yard lights at work, both going black, both GE! Just run one of these
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	Re: Blacken a HPS Lamps « Reply #7 on: June 23, 2011, 02:51:00 AM » Author: RCM442
When I was working at the local hospital, I've seen MANY that have leaked, only because they were cycling for a really long time! Usually months before the arc tube cracks, leaking the arc tube fill into the outer, causing the whole outer to turn silvery colored, protected MH lamps turn jet black!
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