Halco M138/250CWA/5T/K 250W Metal Halide Ballast M138 5T Pulse Start Kit (55174)

This 5-tap electromagnetic ballast kit powers a single 250-watt pulse start metal halide lamp carrying ANSI code M138 or M153. The constant wattage autotransformer (CWA) circuit holds lamp output steady across supply variations, and five voltage taps, including 480V, let the installer match the kit to the line voltage on site — 120V/208V/240V/277V/480V. The kit ships with the core-and-coil ballast and the components needed to complete a fixture retrofit or replacement.

Features

• Drives one 250W pulse start metal halide lamp (ANSI M138 or M153)
• Constant wattage autotransformer (CWA) circuit for stable lamp output
• Multi-tap voltage selection: 120V, 208V, 240V, 277V, and 480V
• Pulse start ignition for reliable lamp starting
• Core-and-coil electromagnetic construction
• Complete kit for HID ballast retrofit or replacement

Ideal For: High-bay lighting • Warehouse and industrial • Parking area • Security and perimeter • Street and roadway lighting