M400/U/ED37 Metal Halide Lamp – 400 Watt, Universal Burning Position

Key Features & Benefits

  • 400W Metal Halide (MH) HID lamp

  • Universal burning position (U)

  • ED37 bulb shape

  • High lumen output for large spaces

  • Long rated life for reduced maintenance

  • Designed for use with compatible 400W MH ballasts

  • Requires enclosed fixtures where specified

Common Applications

  • Warehouse and industrial high bays

  • Parking lots and garages

  • Stadiums and sports facilities

  • Security and area lighting

  • Manufacturing plants

Specifications

  • Lamp Type: Metal Halide (MH)

  • Wattage: 400W

  • Bulb Shape: ED37

  • Burn Position: Universal

  • ANSI Code: M400/U

  • Base: Mogul (E39) (typical)

Description

The M400/U/ED37 metal halide lamp is a high-intensity discharge (HID) light source designed for powerful, consistent illumination in commercial and industrial environments. Operating at 400 watts with a universal burning position (U), this lamp delivers high lumen output and reliable performance for demanding applications.

With its ED37 bulb shape and clear outer jacket, the M400/U/ED37 provides bright, uniform light distribution, making it ideal for use in high-bay fixtures, outdoor luminaires, and area lighting when used with the proper enclosed fixture and compatible ballast.

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