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Westinghouse MH1500BU Metal-Halide Lamp This is basically a 1000W/M47 lamp with tougher electrodes to operate at 150% of normal. Keywords: Lamps

Westinghouse MH1500BU Metal-Halide Lamp

This is basically a 1000W/M47 lamp with tougher electrodes to operate at 150% of normal.

EI-M150PAR36-1_0.jpg EI-MT70-PAR36.jpg W-MH1000BD-4-20-1_0.jpg W-MH1500-BU.jpg
Lamp/Fixture Information
Manufacturer:Westinghouse Electric Corporation
Model Reference:MH1500BU
Lamp
Lamp Type:Metal Halide
Filament/Radiator Type:Fused Quartz
Base:E39 (Mogul)
Shape/Finish:BT56 (BT178)
Service Life:1,500 Hrs ~
Burning Position:Base Up
Fixture
Ballast Type:M48
Electrical
Wattage:1,500W ~
Voltage:268V ~
Current:6.20A ~
Optical
Lumen Output:155,000 (Initial) / 142,000 (Average)
Lumen Efficacy:103 (Initial) /95 (Average)
Colour Temperature:4000K CCT ~
Colour Rendering Index:70% ~
Physical/Production
Dimensions:7" x 15-3/8" (178mm x 390.5mm)
Factory Location:Bath, NY USA
Fabrication Date:2/83
Application/Use:Sport Fields/Stadiums
File information
Filename:W-MH1500-BU.jpg
Album name:Eric / Metal Halide Lamps
Keywords:Lamps
Filesize:242 KiB
Date added:31 Dec 2025
Dimensions:1209 x 1050 pixels
Displayed:18 times
DateTime Original:2022:07:28 08:34:40
Software:Windows Photo Editor 10.0.10011.16384
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1077
Favourites:Add to Favourites

Comment 1 to 2 of 2
Page: 1

Max   [Thu 01 Jan 2026 at 18:02]
The NaSc fill dosage was also adjusted to the burner's higher operating temperature. Beside the electrode overload, the 1 kW MH lamp operating on a 1500 W ballast was also plagued by a severe arc instability resulting from too much salt being in the vapor phase. That issue was fixed in the 1500 W lamp.
BT25   [Sun 22 Mar 2026 at 21:27]
Interesting...didn't realize that there was that many improvements.

Comment 1 to 2 of 2
Page: 1