GoodBulb 250W ED28 Metal Halide – Cool White 4000K Pulse Start Lamp

Made the Right Way the Good Way

Reimagined Incandescent Glow

The GoodBulb 250W ED28 Metal Halide lamp delivers powerful, high-intensity illumination designed to replace older incandescent and mercury vapor lamps in commercial and industrial spaces. With a brilliant 4000 Kelvin Cool White color temperature, this lamp provides crisp, balanced lighting that enhances visibility, productivity, and overall atmosphere. Engineered with pulse start technology, it ensures faster warm-up times, higher lumen maintenance, and more reliable performance compared to standard probe-start metal halide lamps. Perfect for warehouses, gymnasiums, parking lots, or outdoor fixtures, this ED28 bulb produces 25,000 initial lumens of bright, even light while maintaining color stability throughout its 12,000-hour rated life.

Built for high performance, this 250-watt metal halide lamp operates efficiently on 120–277V systems using compatible pulse start ballasts. Its ED28 bulb shape and E39 mogul screw base make installation simple and secure in a wide range of enclosed and open-rated luminaires. The lamp’s rugged arc tube design provides reliable ignition in colder environments and ensures steady illumination even under continuous operation. From large retail floors to outdoor security lighting, this lamp delivers the intensity and coverage you need with professional dependability.

Featuring a high color rendering index (CRI) of 65+, this Cool White lamp brings out natural tones and vivid detail, creating a more accurate and appealing visual environment. The 4000K balanced spectrum delivers clean, neutral illumination ideal for areas requiring clarity and precision without the harshness of daylight color temperatures. Whether highlighting merchandise, illuminating workspaces, or brightening exteriors, this lamp enhances both form and function.

Engineered for durability, the GoodBulb 250W ED28 withstands demanding environments where vibration, temperature changes, and long operating hours are common. Its pulse start arc tube and reinforced housing provide dependable ignition and long-lasting lumen maintenance, while its corrosion-resistant E39 base ensures optimal electrical contact and stability in all conditions.

Instant-ON technology and pulse start efficiency eliminate long restrike times, providing quick illumination after power interruptions. Compatible with most high-intensity discharge (HID) ballasts rated for 250-watt pulse start systems, this lamp offers consistent light output, improved energy efficiency, and lower maintenance costs over time.

Each GoodBulb metal halide lamp is constructed with premium materials and precise craftsmanship to ensure long operational life and consistent quality. Unlike mass-produced alternatives, every component—from the arc tube to the outer envelope—is designed for performance and longevity. The result is dependable, professional-grade lighting made to stand the test of time.

At 17 cents per kilowatt hour, a business replacing 100 traditional 400-watt lamps with 250W metal halides could save thousands in energy over a five-year span while maintaining the same brightness level. Reduced energy usage and fewer replacements mean more savings on maintenance, cooling, and electricity costs—helping your operation stay efficient and sustainable

Rated for 12,000 hours, this GoodBulb 250W ED28 Metal Halide lasts up to five times longer than incandescent lamps. Each bulb is backed by the GoodBulb Xtreme Life Guarantee and our end-of-life recycling program, ensuring responsible disposal and environmental stewardship.

Impactful Lighting

A GoodBulb is more than just a light source—it’s a commitment to sustainability, efficiency, and community impact. Each purchase supports GoodBulb’s mission to deliver clean, solar-powered light to families living without electricity around the world. Choosing GoodBulb means choosing a brighter, better, and more responsible way to light your world.