SUGGESTED ALTERNATES: 

MH400/U 400 Watt M59/E Metal Halide Bulb

M400/U/ED28 400 Watt M59/E Metal Halide Bulb

M400/U/ED37 400 Watt M59/E Metal Halide Bulb

MH400/U/ED28 400 Watt M59/E Metal Halide Bulb

MH 400W/U/ED28 400 Watt M59/E Metal Halide Bulb

MH400/ED37/U/4K 400 Watt M59/E Metal Halide Bulb

SUGGESTED LED REPLACEMENTS: 

100 Watt EX39 Base Gen4 100-277V LED Retrofit Light Bulb

63/80/100 Watt HID Replacement EX39 Mogul Base LED Lamp

63/80/100W Power and Color Selectable HID Replacement Bulb EX39 3000/4000/5000K

100 Watt 100-277 Volt LED HID Corn Cob EX39 Base Retrofit Lamp

80/100/110 Watt Wattage and Color Selectable LED Post Top Retrofit with EX39 Mogul Base 120-277V 3000/4000/5000K

110 Watt 120-277V 180 Degree Beam Shoe Box LED HID Retrofit with Smart Port

Metal Halide Cross Reference:
Venture MH 400W/U/ED28
GE MVR400/U/ED28
Philips MH400/U/ED28
Eiko MH400/U/ED28
Grainger 5V658

Metal halide light bulbs are a member of the High Intensity Discharge (HID) family of lighting products. Metal Halide light bulbs are among the most energy efficient sources of white light available today. These 400w metal halide light bulbs feature special chemical compounds known as Halides that produce light in most regions of the spectrum.

Satco's MH400/ED28/U/4K/E39 (S5843) Pulse Start Metal Halide light bulbs offer high efficacy, excellent color rendition, long service life and good lumen maintenance. Because of their numerous advantages, metal halide HID light bulbs are used extensively in outdoor applications and in commercial interiors.

Satco HyGrade MH400/ED28/U/4K/E39 400W Metal Halide, Universal burn position lamps are enclosed fixture rated and should only be used in enclosed luminaires. These HID bulbs come with a 4200K cool white color temp, Initial Lumens 36,000 and Rated Average Life 20,000 Hours , ANSI Type M59/E. These Satco High Intensity Discharge Metal Halide HID light bulbs employ a Mogul Base and are designed with a clear ED28 bulb. 

Specification Sheet