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GE 250w EZ-Merc SBMV possibly made by Panasonic? They're NOT EYE.

GE 250w EZ-Merc SBMV possibly made by Panasonic? They're NOT EYE.

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Unusual lamps in BT28 and medium bases. They're quite different from those made by EYE in many ways. Like the glass forming at the base, looks more like a Philips. The stem press is clear, not black, which older EYEs had. The etch is outside stamped, older EYEs were inside stamped. I think EYE did make some in BT though? Most were E28 though.

image~430.jpeg image~429.jpeg image~428.jpeg image~427.jpeg

Light Information

Light Information

Manufacturer:Panasonic for GE?
Model Reference:HSB 250W
Lamp
Lamp Type:SBMV
Filament/Radiator Type:Ballast filament plus quartz arc tube
Base:Medium
Shape/Finish:BT28 DX coated
Service Life:12,000 hours
Electrical
Wattage:250w
Voltage:120v
Optical
Lumen Output:5000 lumens
Lumen Efficacy:15-20 lpw
Color Temperature:3300K
Color Rendering Index:50
Physical/Production
Dimensions:9 1/2"
Factory Location:Japan
Fabrication Date:1980s

File information

File information

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Album name:silverliner / good ol' mercury vapor
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Date added:Feb 26, 2018
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Silverliner
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Verd a ray classic.


GoL
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Feb 27, 2018 at 01:01 PM Author: Silverliner
Any comments guys?

May all the great lighting technologies have their place in history.

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Feb 27, 2018 at 01:03 PM Author:
Interesting, we never had BT-shaped bulbs over here, only ever PS originally and then elliptical.
Silverliner
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GoL
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Feb 27, 2018 at 02:53 PM Author: Silverliner
Well don't you have BT lamps from Japan and on rare occasions, the USA?

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Feb 27, 2018 at 03:01 PM Author:

Well don't you have BT lamps from Japan and on rare occasions, the USA?

Not on general sale, at least not as far as I've seen. Obviously us collectors have them, but I don't recall ever seeing them in normal commercial use anywhere.
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