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PHILIPS H39KC-175/DX 175 WATT

Got this one last night from a junkyard.

Light Information

Lamp
Manufacturer:	PHILIPS
Model Reference:	H39KC-175/DX
Lamp Type:	Mercury Vapor (MV)
Filament/Radiator Type:	High Pressure Mercury Discharge
Base:	E39 (Mogul)
Shape/Finish:	BT28
Service Life:	24000HRS+
Electrical
Wattage:	175W
Physical/Production
Factory Location:	USA
Fabrication Date:	1986
Application/Use:	Security lighting/ Street lighting

File information

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Filename:	PSX_20190604_080721.jpg
Album name:	HomeBrewLamps / MERCURY VAPOR
Keywords:	Lamps
File Size:	471 KB
Date added:	Jun 04, 2019
Dimensions:	1822 x 2464 pixels
Displayed:	70 times
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Comments

fluorescent lover 40
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Lights are awesome! :)

March 1986, Bath, NY. Nice find!

Power provider: Southern California Edison (SCE)

-Date decoder of some US lamps 1960-present.
-Switch and receptacle collector.
-I'll save any vintage lamp!

HomeBrewLamps
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Isn't that around the time the westinghouse name started getting replaced? Or is this a Philips made bulb without the Lifeguard arc tube? Did they have two separate types of bulbs being produced?

~Owen

Mercury Vapor Lamp High Pressure Sodium Scavenger, Urban Explorer, Lighting Enthusiast and Creator of homebrewlamps

WestinghouseCeramalux
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Vintage HID Lamp & Luminaire Collector

Quote from HomeBrewLamps on Jun 04, 2019 at 12:27 PM

Isn't that around the time the Westinghouse name started getting replaced? Or is this a Philips made bulb without the Lifeguard arc tube? Did they have two separate types of bulbs being produced?

As far as I know, this lamp is still basically a Westinghouse Lifeguard. Philips kept the lifeguard arc-tube for a period of time after switching from BT to ED lamps. I'm not sure exactly when the lifeguard arc-tube was dropped, but I think it was in the early nineties.

Your mission - should you choose to except it - is to save unique and rare HID lighting before it's all scrapped.

fluorescent lover 40
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Lights are awesome! :)

Quote from WestinghouseCeramalux on Jun 04, 2019 at 05:01 PM

As far as I know, this lamp is still basically a Westinghouse Lifeguard. Philips kept the lifeguard arc-tube for a period of time after switching from BT to ED lamps. I'm not sure exactly when the lifeguard arc-tube was dropped, but I think it was in the early nineties.

They dropped the Lifeguard arc-tube in 1995.

Power provider: Southern California Edison (SCE)

-Date decoder of some US lamps 1960-present.
-Switch and receptacle collector.
-I'll save any vintage lamp!

streetlight98
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Mike McCann

I don't think they dropped the lifeguard arc tubes all at once though. Some wattages remained undercover lifeguards for longer than others. IIRC the medium base lamps were the last to go in the mid-90s. The larger lamps were "de-lifeguarded" earlier I believe.

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