Damar 01054D M400U/4K 400W Metal Halide BT37 4000K E39 Base

Identification & Application

The Damar 01054D is a 400W metal halide lamp specified as M400U/4K in a BT37 bulb configuration with a 4000K color temperature and E39 mogul base. It is designed for use in high intensity discharge luminaires rated for 400W metal halide operation. This lamp requires a compatible metal halide ballast as specified by the fixture manufacturer. It is intended for high bay, area, and industrial lighting applications requiring neutral white output. Verify ballast compatibility, fixture rating, and operating position before installation.

Technical Performance Specifications

• Brand: Damar
• SKU/MPN: 01054D
• Product Type: Metal Halide Lamp
• Installation Type: Screw-in lamp for HID luminaires with E39 mogul sockets
• Electrical: 400W, requires compatible metal halide ballast
• Optical: 4000K, Typical (not manufacturer documented): 32000-40000 lm
• Base Type: E39 Mogul
• Mechanical: BT37 bulb shape, universal burn position (U)
• Lifecycle: Typical (not manufacturer documented): 15000-20000 hr
• Documentation: See manufacturer spec sheet for additional details

Application Guidance

Use in luminaires designed for 400W metal halide lamps with E39 mogul sockets. Ensure the ballast type matches the M400U/4K electrical requirements before installation. De-energize the circuit and allow the existing lamp to cool prior to replacement. Install by threading the base securely into the socket without over-tightening. Follow applicable safety and disposal regulations for HID lamps.