High Bay LED Retrofit

High Bay LED Retrofits are LED bulbs and screw in lamps that replace the metal halide bulbs and ballasts inside an existing metal halide high bay.
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Frequently Asked Questions

In conversations with our customers, we asked them what questions they wished they had asked before buying high bay retrofit kits. Here’s the list below. If you couldn’t find the answer to your question, contact us on (888) 423-3191 and we’ll be happy to assist you.

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Before you buy

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Fixtures and Fittings

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What Are High Bay LED Retrofit Kits?

High bay retrofit kits are LED kits designed to replace the bulb and ballast inside your existing high bay light.

Can You Retrofit T5 and T8 High Bay Fixtures?

Yes, you can. We offer both tube and magnetic strip retrofit kit solutions.

What Is the Difference Between High Bay and Low Bay Retrofit Kits?

There really isn’t a difference, other than the fact that a low bay kit is less powerful than a high bay kit.

Where Are High Bay Retrofit Kits Typically Used?

These typically include uplight fixtures, those that are pointed upwards to a reflective surface. We also have several high performance and excellent cost new fixture options that are often more competitively priced than most retrofits.

Led Pole Top Customer Install


When Does It Make Sense to Use a Retrofit Kit Instead of a New High Bay Light Fixture?

There are various cases when it makes sense:

You have a substantial investment in a style of high bay and you want to keep the look;
You would be required to create new engineering drawings if you were to replace the fixtures.

What Does It Cost to Retrofit High Bay LED Lights?

They are often on par with new fixtures, installation may be a little more expensive because there is a little more an electrician needs to do.

Are High Bay Retrofit Kits Rebate Eligible?

They are, our kits are DLC qualified. Ultimately, it’s up to the utility company to supply the rebate, so it’s best to check with them first.

What Is the Best Retrofit Kit for Replacing 400 Watt Metal Halide?

We have several options, including a 120 Watt and 150 Watt metal halide retrofit kit, or a screw in bulb with a remote driver.

Do You Have a Screw in Retrofit for an E39 Socket?

We offer 2 solutions that can screw into an E39 Mogul socket.

Are Retrofit Kits a Good Option for Inverted Mounted High Bay Lights?

Yes, these fixtures are very expensive and retrofitting makes a really good option.

Is a Corn Cob Bulb a Good Solution for a Metal Halide Replacement?

No. We recommend you choose an option that produces directional light, not omni-directional light like a corn cob bulb does.

Warehouse Led Conversion


What Size Bases Are High Bay Retrofit Kits Available In?

Typically they are either no base, E39 or E26 with an adapter to E39.

How Many Lumens Do LED High Bay Retrofit Lamps Put Out?

Our most powerful kit produces over 50,000 lumens. But to retrofit a 400W MH you need 14K to 20K LED lumen, depending on your heights and light level needed. We usually recommend a new high bay option also when we quote retrofits.


How Long Does It Take to Install the Retrofit Kits? Are There Brackets Included?

Once an electrician gets used to your fixtures and our kits, a fixture can be retrofitted in 20 minutes.

Do I have to bypass the ballast if I switch to LED?

It depends. If you are using tubes to replace fluorescent tubes in a high bay fixture, we offer ballast compatible tubes. Otherwise, all other kits bypass the ballast.

Get Your Free High Bay Lighting Plan

Founded in 2008, LED Lighting Supply has been providing high bay lighting solutions to facilities across the country for more than a decade.

Whether you need a free lighting plan or have questions about LEDs, our expert lighting team will help you make the right choice – whether that’s for a school gym or a 1,000,000 square foot facility.

 Contact us for a free lighting plan or to discuss your LED lighting goals.

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