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Ushio UMH-1000/U/BT37 1000W Metal Halide Bulb — main product image
Ushio

Ushio UMH-1000/U/BT37 1000W Metal Halide Bulb

★★★★★3.9 (4 reviews)

Ushio's 1000W metal halide bulb delivers 4000K universal-burn illumination built for demanding commercial and industrial environments.

$37.84*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Ushio UMH-1000/U/BT37 is a 1000-watt metal halide lamp engineered for high-output commercial and industrial lighting applications. With a color temperature of 4000K, it produces a neutral white light that supports accurate color perception — an important quality in warehouses, manufacturing floors, retail spaces, and outdoor area lighting. The universal burn position rating gives installers full flexibility, as the bulb performs reliably whether mounted vertically, horizontally, or at any angle in between.

Built around the BT37 blown tubular envelope and fitted with an E39 Mogul Screw base, this bulb is designed as a direct replacement in standard high-wattage fixtures. As with all metal halide lamps, a compatible ballast is required, and operators should expect a brief warm-up period before the bulb reaches full output. While metal halide technology is gradually being supplemented by LED in many contexts, it remains a proven and cost-effective solution for facilities that need intense, broad-coverage illumination from existing HID infrastructure.

Specifications

Brand
Ushio
Model
UMH-1000/U/BT37
Wattage
1000W
Bulb Type
Metal Halide
Base Type
E39 Mogul Screw
Color Temperature
4000K
Bulb Shape
BT37
Burn Position
Universal

Pros & Cons

👍 Pros

  • Universal burn position allows flexible mounting in any orientation.
  • 4000K neutral white color temperature provides accurate color rendering for workspaces.
  • BT37 bulb shape is a widely compatible form factor for existing commercial fixtures.
  • E39 Mogul Screw base fits standard high-wattage industrial sockets.
  • 1000W output delivers high-intensity illumination for large commercial and industrial spaces.

👎 Cons

  • Requires a compatible 1000W metal halide ballast, adding to total installation cost.
  • Metal halide bulbs have a warm-up period before reaching full brightness.
  • 1000W power draw results in significant energy consumption compared to modern LED alternatives.
  • Bulb must be allowed to cool before it can restrike after being turned off.
  • The BT37 form factor is relatively large, which may not suit compact fixture designs.

Frequently Asked Questions

It uses an E39 Mogul Screw base, which is the standard base for high-wattage commercial and industrial lighting fixtures.
Yes, the UMH-1000/U/BT37 is rated for universal burn position, meaning it can be installed vertically, horizontally, or at any angle.
This bulb produces light at 4000K, which is a neutral white tone well-suited for commercial spaces where accurate color rendering is important.
BT37 refers to the bulb shape — a blown tubular shape that is 37 eighths of an inch (approximately 4.6 inches) in diameter at its widest point.
Yes, like all metal halide bulbs, the UMH-1000/U/BT37 requires a compatible 1000W metal halide ballast for proper ignition and operation.

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