(1/2: Intro) Westinghouse 400W Mercury Vapor Coated Cleartopper Bulb. @THEBULBHOME
(1/2: Intro) Westinghouse 400W Mercury Vapor Coated Cleartopper Bulb.  @THEBULBHOME
Uploaded November 2014 | Updated September 2026, 2 minutes ago
This amazing bulb that I just found today in a antique market it's awesome! Made by Westinghouse in the US around 70s or 80s, whit a lot of hours in the arc tube but still unique and beautiful.
This is a pure Westinghouse cleartopper Mercury Vapor 400W bulb, with the /W model, that according to some research I made and some guys at Lighting Gallery, its a very hard item to find, this is not made by the Philips/ Westinghouse division, this is only old good Westinghouse.
I don't know if it still works but I will find out later!
Wanna know if it still works? Watch the test video! youtube.com/watch?v=mgzqGZ7VZVQ&list=UUu4ArqLE88esAbHHtunVpZg
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(1/2: Intro) Westinghouse 400W Mercury Vapor Coated Cleartopper Bulb.

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