What is a LED Corn Bulb?

The LED corn bulb, also known as corn cob lamps, takes its name from the corn cob, as it is covered with individual LED lights arranged on a metal structure. When displayed it resembles a corn cob, with bright kernels. A single corn bulb achieves the brightness levels of many traditional lights. This makes corn fixtures perfect for outdoor and industrial locations. Even better, these bulbs achieve high lumen levels at much lower wattage than the other types of bulbs.

These bulbs work in multiple applications and feature a few different screw bases:

  • E17
  • E26
  • E39
Corn Bulb

Why should I use LED corn bulbs?

Post Top Light

Did you know that LED lights can replace metal halide or high pressure sodium lights in outdoor or industrial settings, such as in parking lots and warehouses? LED corn bulbs can retrofit high bay and low bay lights and offer many wattage options. Corn bulbs retrofit into existing metal halide or high-pressure sodium fixtures without needing to replace the entire fixture.

The LED corn light bulb offers higher energy efficiency for lower replacement and maintenance costs. The bulb uses a plastic cover that protects both the driver and led lights from bugs, dust, weather, and heat. Due to the large surface area of their aluminum structure, heat can easily escape. This allows corn bulbs to retain less heat than other bulbs. These low-voltage bulbs offer a lifespan up to five times longer than traditional bulbs. The LED corn bulb also offers durability, a 360-degree beam angle, and instant-on options.

Where can I use Corn bulbs?

Corn bulb lighting works for indoor and outdoor commercial applications including the following:

High Bay Lighting

These lights install on ceilings between 20 to 45 feet high. High bay corn bulbs give off 10,000 lumens or more. They use beam angles of 60, 90, or 120, which helps create a focused beam with a high lux level.

High Bay Light
Post Top Light

Low Bay lighting

These lights install on ceilings lower than 20 feet high. They give off a lumen count less than 10,000. A low-bay corn bulb uses a beam angle of 120, which spreads the light to maintain the desired level.

Low Bay Corn Bulb
LED Corn Bulb

Shoebox Fixture lighting

Known for their “cobra head” or “shoebox” design, these lights install in outdoor areas illuminating highways, streets, parking areas and more.

Before and After Corn Bulb,Cobra Light

Flood lights

Outdoor lights install in a broad area such as parks and playing fields. The high lux and lumens output make this type of lighting perfect for sporting events.

Floodlights
Cobra Light Bulb

Shop lighting

Shop lights install in workshops or mechanic shops to provide light for specific tasks. These lights also supplement natural or overhead light.

Post Top lighting

Typically found along walkways and parks, these lights rest at the top of a pole of some sort.

What wattage and lumen count do I need?

LED bulbs offer the same brightness as metal halide or high-pressure sodium bulbs at a much lower wattage. Lumen refer to the brightness of the bulb, while wattage refers to the energy the bulb uses. When replacing metal halide lamps, look at the lumen outputs:

Metal Halide WattageLED Corn Bulb Equivalent
400W12,000-18,000
250W9,000-12,000
150-175W7,000-9,600
75-125W4,000-8,000

Switching to LED lowers your wattage, and therefore, your energy bill, without lowering the brightness.

Additionally, LED corn lamps come in a wide range of color temperatures suited to different situations.

  • 3000K: Warm white color, best for living rooms, kitchens, and bedrooms
  • 4000K: Natural white light, best for offices and overhead lights
  • 5000K: Cool daylight, best for basements and garages

?While LED corn lights come in all these options, the majority go in the 5000K range due to their industrial or outdoor location.

How to install the LED corn bulb?

LED Corn Bulb Vertically Mounted Upward

Vertically Upward
(base up)

LED Corn Bulb Vertically Mounted Downward

Vertically Downward
(base down)

LED Corn Bulb Transversely Mounted Horizontally

Transversely Mounted
(base horizontal)

Keep in mind that if you mount the bulb horizontally, you might need a wire to support the bulb, due to the weight of the bulb.  

The corn bulb may sport a funny name, but the benefits are far from a joke. With the LED corn bulb, you get an energy efficient, low maintenance product, with longevity. You can also see a return on your investment in as little as 12 months. If you’re considering a purchase, visit HomElectrical.com where we have the most competitive prices on LED corn bulbs. Please, leave a comment if you have any questions or are still confused. No matter the project, we have the solution.

Falyn Eaden
Falyn Eaden

Working as Project Management Officer at CORL Technologies and armed with a B.S. in English & Professional Communication and an M.S. in Cyber Security, Falyn works to create environments that protects and represents the world around us. He loves life, fast-paced environments, flag football, eating and exploring new things.

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