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B-H1 Lamp Warmed Up

B-H1 Lamp Warmed Up

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Lamp after about 20 minutes of operation. My 1940s lighting book says runup time is 7 minutes, but this one took at least 15 to reach full brightness. Perhaps this is because CWA starting current is not as high as on HX type early ballasts.

IMG_2265.JPG IMG_2263.JPG IMG_2261.JPG

Light Information

Light Information

Manufacturer:GE (Mazda)
Model Reference:B-H1
Lamp
Lamp Type:Mercury Vapor
Base:E39
Shape/Finish:Tubular
Fixture
Fixture Type:Tested with M59 highbay
Ballast Type:CWA Multi-Tap
Socket Type:E39
Electrical
Wattage:400
Voltage:about 140V
Current:3A
Physical/Production
Fabrication Date:1930s-1940s?

File information

File information

Download: Download this File
Filename:IMG_2265.JPG
Album name:mbulb146 / H1 Mercury Lamp
Keywords:Lamps
File Size:411 KB
Date added:Jun 27, 2019
Dimensions:1848 x 2464 pixels
Displayed:28 times
Date Time:2019:06:24 21:48:10
DateTime Original:2019:06:24 21:48:10
Exposure Bias:0 EV
Exposure Time:1/20 sec
FNumber:f 2.2
Flash:No Flash
Focal length:4.15 mm
ISO:200
Make:Apple
Model:iPhone SE
Software:12.3.1
White Balance:0
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