G E Lighting 30942 250W Metal Halide Lamp ED28 Mogul Base

Product Description

The G E LIGHTING 30942 is a 250-watt clear multi-vapor metal halide lamp engineered for commercial and industrial lighting applications. Built in an ED28 bulb shape with a mogul base, it operates in a universal burn position and is rated for both open and enclosed fixtures. The lamp delivers 20,800 lumens at a 4,200 Kelvin color temperature with a CRI of 65, making it well suited for high-bay warehouses, parking structures, sports facilities, and manufacturing floors. It carries an M58 ANSI ballast designation and a rated lamp life of 10,000 hours. Lumen maintenance is 90 percent at 50 percent of rated life, supporting consistent output throughout its service interval.

This lamp is a direct fit for commercial and industrial luminaires requiring a 250-watt metal halide source with an M58-compatible ballast. Universal burn position allows installation in fixtures oriented vertically base-up, base-down, or horizontally. The ED28 form factor and mogul base are standard in high-bay and area-lighting fixtures found in retail, industrial, and outdoor site-lighting applications. Licensed electricians and lighting contractors handle replacement in most commercial settings. Sold in a package of 4 units.

Key Features

• 250-watt multi-vapor metal halide output rated at 20,800 lumens
• 4,200 Kelvin color temperature with CRI of 65 for broad commercial use
• Universal burn position — operates base-up, base-down, or horizontal
• Compatible with open and enclosed fixtures
• M58 ANSI ballast type for standard HID ballast pairing
• 90 percent lumen maintenance at 50 percent of rated 10,000-hour life

Compatibility

Designed for use with M58 ANSI-rated HID ballasts in open or enclosed luminaires accepting an ED28 mogul-base 250-watt metal halide lamp. Verify ballast ANSI code before installation.

Installation Notes

Installation should be performed by a licensed electrician following applicable NEC requirements. De-energize and lock out the fixture circuit before relamping, and allow the existing lamp to cool fully before handling. Metal halide lamps operate at high internal pressure — never operate a lamp outside its rated burn position or in an open fixture if the lamp is not rated for open use. Allow adequate restrike time after a power interruption before assuming the lamp has failed.