LED Corn Cob Bulbs
LED corn cob bulbs are high-output retrofit bulbs designed to replace metal halide, HPS (high-pressure sodium), and CFL bulbs in commercial and industrial lighting applications. Named for their corn-like appearance, these cylindrical bulbs are covered with rows of LEDs, providing powerful 360-degree illumination.
At A‑M Electric, we supply LED corn cob bulbs in a wide range of wattages, socket bases, and color temperatures, making them ideal for pole lights, high bays, post tops, parking lots, and exterior wall packs.
Key Features of LED Corn Cob Bulbs
Full 360° Light Distribution: Unlike standard directional bulbs, corn cob LEDs are engineered to emit light in all directions. This makes them especially effective in fixtures that rely on omnidirectional light, such as post tops, area lights, and globe fixtures.
Energy Efficiency: LED corn bulbs typically consume 60–80% less energy than HID or CFL bulbs while delivering equivalent or better brightness. This can dramatically reduce utility bills for facilities running lighting 8+ hours per day.
Long Lifespan: Rated for up to 50,000 hours, these bulbs significantly reduce the frequency of replacements in high or hard-to-access fixtures—especially useful for gymnasiums, parking structures, or street poles.
Versatile Applications: Corn cob bulbs are available in multiple wattages, base types (E26, E39, mogul base), and color temperatures from warm white (3000K) to daylight (5000K+). They're used in:
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Pole lights and streetlights
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Parking lot fixtures
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Industrial high bay and low bay lighting
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Exterior security lighting
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Post top decorative fixtures
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Shoebox fixtures
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Gymnasiums and large warehouses
Durability for Outdoor Use: Most corn cob bulbs are built with aluminum housings, heat sinks, and polycarbonate lenses. Many models are rated IP64 or higher, making them suitable for enclosed or semi-enclosed outdoor fixtures.
Simple Retrofit Option: LED corn bulbs are plug-and-play in many cases. Some may require bypassing the ballast, which improves energy efficiency and eliminates future ballast failures.
When to Use LED Corn Bulbs vs. Other LED Options
Use corn cob LEDs when you need wide, uniform light in existing fixtures where directional LED bulbs won’t work effectively—especially in retrofits where fixture replacement is cost-prohibitive.
Need Help Matching the Right Retrofit?
Not all corn cob bulbs are created equal. Our team can help match the correct lumen output, wattage, base, and dimensions to ensure safe, efficient performance for your fixture. Bring your old bulb or photos to our Louisville showroom, or contact us for a recommendation.