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Westinghouse C70S62/PAR Dichroic 70W HPS Lamp Many thanks to Eric (BT25) for this amazing lamp, which is one of only five known in the world in collectors' hands..! Designed for use in US coal mines, it is probably one of the first discharge lamps with a dichroic reflector and also perhaps the first HPS lamp in a sealed beam reflector. It has a very wide flood beam pattern and due to the action of the reflector, very little heat is radiated from the front of the lamp, but is instead directed out of the rear. The lit images are at bottom left, just after ignition, and on the right after warm-up. From information received from another collector, I believe this particular lamp dates back to 1979, but we can't pinpoint it any closer than that, so if anyone has any more information, please get in touch. Keywords: Lamps

Westinghouse C70S62/PAR Dichroic 70W HPS Lamp


Many thanks to Eric (BT25) for this amazing lamp, which is one of only five known in the world in collectors' hands..! Designed for use in US coal mines, it is probably one of the first discharge lamps with a dichroic reflector and also perhaps the first HPS lamp in a sealed beam reflector. It has a very wide flood beam pattern and due to the action of the reflector, very little heat is radiated from the front of the lamp, but is instead directed out of the rear. The lit images are at bottom left, just after ignition, and on the right after warm-up.

From information received from another collector, I believe this particular lamp dates back to 1979, but we can't pinpoint it any closer than that, so if anyone has any more information, please get in touch.
Fluke_1664FC_Multifunction_Tester_2.jpg GE_E29s_Lampholder_a.jpg Westinghouse20C70S62-PAR2020Dichroic20HPS~0.jpg Benjamin_adaptors.jpg GEH100A4-T.jpg
Lamp/Fixture Information
Manufacturer:Westinghouse Electric Corporation
Model Reference:C70S62/PAR
Lamp
Lamp Type:High Pressure Sodium
Filament/Radiator Type:PCA Arc Tube
Base:Medium Side Prong
Shape/Finish:PAR38 Dichroic
Service Life:7,500 hours
Burning Position:Universal
Fixture
Ballast Type:S62
Electrical
Wattage:70
Voltage:52
Current:1.6A
Optical
Lumen Output:4,500 lm at 100 hours
Lumen Efficacy:68.3 lm/W
Colour Temperature:2100K
Colour Rendering Index:22
Physical/Production
Dimensions:4.3125in / 110mm
Factory Location:Fairmont WV, USA
Fabrication Date:December 1979
Application/Use:Mine lighting
File information
Filename:Westinghouse20C70S62-PAR2020Dichroic20HPS~0.jpg
Album name:Ria / High Pressure Sodium Lamps
Keywords:Lamps
Filesize:397 KiB
Date added:Aug 03, 2024
Dimensions:2008 x 1506 pixels
Displayed:10 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=162
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Comment 1 to 3 of 3
Page: 1

Sammi   [Aug 03, 2024 at 11:46 PM]
It certainly is wonderful, we must light it up again.! Cool
BT25   [Aug 15, 2024 at 05:14 AM]
Glad that you still like this one! Very Happy
Ria   [Aug 15, 2024 at 02:44 PM]
It's brilliant..! As Sammi said, it needs another lighting-up, but then so do all the hundreds of others... Rolling Eyes Razz

Comment 1 to 3 of 3
Page: 1