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Match a replacement LED bulb to the fixture you already have

A box says “60-watt replacement.” Another says “dimmable.” Neither tells you everything about whether the bulb belongs in your lamp. Before comparing brightness or price, make a short record of what the existing fixture requires. Then compare products against that record.

This guide covers replaceable, screw-base household LED bulbs in the United States. Start only when the fixture's instructions establish that its bulb is user-replaceable. If that is unclear, or the required information is unavailable, consult the manufacturer or a qualified electrician.

Build a requirements record from documents

Use the fixture manual, purchase records and existing bulb packaging. The old bulb's model number is a useful lead, but its presence does not prove it was the correct choice.

Record these items, marking anything you cannot establish as “unknown”:

Fixture manufacturer and model; permitted lamp types and user replacement
Required base and bulb shape
Permitted bulb dimensions and clearance restrictions
Rated voltage and actual-wattage limits
Enclosed, dimmed, recessed or insulated, and indoor or outdoor conditions
Preferred light output and appearance

Keep the relevant manual page or manufacturer URL beside each requirement. If identifying information cannot be obtained from available documents, ask for help rather than dismantling the fixture or control to find it.

Separate the base from the bulb's overall size

In US listings, E26 describes the screw base; A19 describes the bulb's shape and size category. They answer different questions, and a product can carry both descriptions. Compare the actual product dimensions with the fixture's requirements, including overall length. LEDVANCE's explanation of E26 and A19

Matching E26 alone does not establish the correct voltage or permission to use the bulb in a particular fixture. Check those specifications separately, especially when shopping across markets. GE Lighting directs buyers to follow the fixture manufacturer's wattage, voltage and shape specifications, and to contact the manufacturer when a special fixture's requirements are unclear. GE Lighting FAQ

An appealing shape or a familiar-looking package is no substitute for the model's dimensions. A bulb that looks similar to the old one may still be too long for the available space.

Resolve the fixture-specific restrictions

Treat each applicable condition as its own question:

Fully enclosed fixture: does the bulb's documentation permit that use under the fixture's conditions? Enclosure can trap heat, so the rating matters.
Dimmer: is the bulb dimmable, and is the particular bulb-and-dimmer combination supported? A “dimmable” label alone does not settle the match.
Recessed or insulated fixture: what lamp types and operating conditions does its manufacturer permit? Do not assume that a general enclosed-fixture claim answers this.
Outdoor or moisture exposure: do both the fixture and bulb meet the manufacturer's conditions for the actual location? Enclosure suitability is a separate check.

The Department of Energy's buyer guidance specifically calls for checking enclosed-fixture suitability and dimming-system compatibility. GE's guidance separately calls for outdoor-use suitability. DOE buyer tips · GE fixture guidance

Use the exact dimmer model and current manufacturer guidance when researching the combination.

Keep any unresolved condition open. Turning a dimmer to maximum is not a substitute for establishing compatibility.

Then choose lumens and light appearance

The FTC's Lighting Facts label separates light output in lumens from electricity use in watts. Its familiar US comparison is that a traditional 60-watt incandescent produces about 800 lumens. Use that as an approximate reference for that kind of bulb, not a universal equivalence across shapes or markets. FTC shopping guide

A “60-watt replacement” LED therefore does not necessarily use 60 watts. Read its actual wattage when comparing it with the fixture's permitted lamp specifications. Low power use does not cancel the other restrictions.

Choose light appearance separately. The label places it on a warm-to-cool scale; color temperature is expressed in kelvin, or K. A warmer-looking light is not necessarily a lower-output light. Write down the appearance you want alongside the lumens. The label's yearly cost and expected life are estimates, not measured results for your home. Keep their stated assumptions with any comparison. FTC label explanation · DOE color-temperature explanation

Practice with an invented pendant-light comparison

Imagine an open, dry indoor dining pendant on a dimmer. Its fictional documents specify E26, an A19 bulb, 120 V, a maximum diameter of 2.4 inches and length of 4.4 inches, and actual LED power no greater than 10 W. These are invented requirements, not limits to copy for your own fixture.

Two fictional candidates meet those base, shape, voltage and size requirements. Both provide 800 lumens at 2700 K.

Scroll the table horizontally; arrow keys work when focused.

Remaining comparison	Candidate A	Candidate B
Actual power	8 W	9 W
Dimming information	Dimmable; exact dimmer match unknown	The fictional documents cover the exact dimmer combination and conditions
Next decision	Hold pending confirmation	Continue comparing the remaining instructions and preferences

Candidate A's lower wattage does not resolve the missing dimmer information. Candidate B stays in consideration because the stated combination is documented; it is not a recommendation or approval for another fixture. No products were purchased, installed or tested for this example.

Take the unanswered question shopping

Finish with three short sections: “Must match,” “Preferred light,” and “Still unknown.” Add the candidate's exact model and the source for each answer.

If an unknown remains, your next step can be specific: “Does this bulb work with this dimmer under these conditions?” Ask the manufacturer or a qualified professional before selecting it. A useful shopping record can end with a clear question rather than a purchase.

Sources

Checked October 10, 2026, Japan Standard Time. Recheck current model instructions before purchase.

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Choosing a dehumidifier for drying laundry in winter

Start with the temperature of the room where your washing will dry. A heated living room and a cold utility room can need different machines. Then check whether your usual load will fit on the airer with space for airflow, and whether the drying mode suits the hours you can use it.

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Frozen rice dry at the edges and cold in the middle? Start with the portion

A single frozen block can turn lunch into a guessing game: hot edges, a cold center, another trip through the microwave. Start by freezing rice in individual, evenly shallow portions, then break up the rice partway through reheating. You can do this with ordinary freezer- and microwave-safe containers.

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Before digitizing family photos, save the writing and the order

A familiar face can outlast the memory of where a photograph was taken. A note on the back, an envelope, or the pictures beside it in an album may hold the missing clue. Keep those connections when you make digital copies.

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Wash at home or use a cleaner? Read through the drying instructions

A shirt looks easy to wash until its label asks for a drying method you cannot manage in your apartment. A jacket seems straightforward until you notice a separate warning about its trim. Before putting either in water, read the entire care instruction and work out where the garment will go when washing ends.

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A small bouquet at home: choosing a vase and caring for the water

A grocery-store bouquet does not need a special occasion or a new collection of vases. Start with one container you already own and a place where you will actually see the flowers. The useful questions are simple: can the stems fit comfortably, can you clean the container, and can you check the water without dismantling the whole display?

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Before You Drop Off Old Batteries, Check the Label and Local Rules

A drawer of old batteries can contain several different disposal decisions. The AAs from a remote, a coin cell from a key fob, and a rechargeable pack may need different destinations. Start by identifying what you have, whether it is loose or built into a device, and its visible condition. Then check the collection program that would actually receive it.

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A 40 percent chance of rain and what to check before heading out

Should you take an umbrella, leave earlier, or change the walk home? Start with the latest forecast for your destination and the hours you will be outside. Check the outward and return journeys separately, then decide what to carry and how much room you have to change plans.

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Lettuce freezing in your fridge? Check its location before changing the temperature

Your salad greens have icy patches, but the milk looks normal. Start by finding exactly where the greens were sitting. Move freeze-sensitive food away from a cold-air outlet to the storage area recommended in your owner's manual, and keep the air passages clear. Don't tape over a vent to stop the cold.

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Sew a shirt button back on, then check that it fastens

A button can be attached and still be awkward to use. It may sit off-center, pinch the shirt front, or leave too little room for the buttonhole fabric. Finish this repair by fastening and unfastening the button, with the shirt laid flat.