The bulb type and wattage matter more than you might think

Most refrigerators use one of three bulb types: an incandescent A15 bulb (the classic pear shape), a smaller incandescent T8 or T10 tubular bulb, or increasingly, an LED bulb designed for refrigerator use. The wattage is usually between 25 and 40 watts for incandescent, or 2 to 5 watts for LED. Before you buy a replacement, you need to know which one your fridge uses. The easiest way is to look at the bulb that's already in there—the type and wattage are printed on the glass or plastic base. If the bulb is burned out and you can't read it, check your refrigerator's manual or look inside the light fixture itself; many have the specifications printed there.

LED bulbs last much longer than incandescent ones—often 10 to 15 years versus 1 to 2 years—so if your fridge takes a standard socket, switching to an LED refrigerator bulb is worth the slightly higher upfront cost. Do not use a regular household LED bulb in a refrigerator; they are not designed for the cold and may flicker or fail quickly.

Key Takeaways

  • Check the wattage and type printed on your current bulb or in your refrigerator manual before buying a replacement.
  • Unplug the refrigerator or turn off the circuit breaker before you touch the bulb to avoid electrical shock.
  • Most refrigerator bulbs unscrew by hand or slide out of a clip—turn counterclockwise for screw-in types, or push and twist for bayonet-style bases.
  • LED refrigerator bulbs last much longer than incandescent and are worth the extra cost if your fridge socket accepts them.
  • If the light still does not work after you install a new bulb, the socket or the door switch may be faulty and will need professional repair.

Unplug the refrigerator or kill the power at the breaker

Even though a refrigerator light bulb runs on low voltage and low current, you should still cut power before touching it. Unplug the refrigerator from the wall outlet—this is the safest and fastest method. If the outlet is hard to reach or the cord is too short, turn off the circuit breaker that controls the kitchen outlets instead. Wait a few seconds to make sure the power is truly off.

This step is not just about safety; it also prevents you from accidentally triggering the door switch while you are working, which could cause the compressor to cycle on unexpectedly.

Locate the light fixture and remove the old bulb

The light fixture is almost always on the ceiling or upper wall of the refrigerator compartment, or sometimes on the side wall near the top. Open the fridge door and look up. You will see a small plastic or metal housing with the bulb inside. Some fixtures have a clear plastic cover or lens that you may need to unscrew or unclip first—check whether the cover twists off or has a small tab you can pull.

Once you can see the bulb, remove it using one of two methods. If it is a screw-in bulb (the most common type), grip it gently and turn counterclockwise until it comes free. If it is a bayonet-style bulb (less common, with two small pins on the base), push it in slightly and twist counterclockwise, then pull it straight out. Do not force it; if it is stuck, try a gentle rocking motion while turning.

Install the new bulb and test the light

Take the new bulb out of its packaging and inspect it for any damage. For a screw-in bulb, insert it into the socket and turn clockwise until it is snug—do not overtighten, as this can crack the glass or damage the socket. For a bayonet bulb, align the two pins with the slots in the socket, push in, and twist clockwise until you feel it lock.

If your fixture had a plastic lens or cover, screw or clip it back in place. Plug the refrigerator back in or switch the circuit breaker back on. Open the door and check that the light comes on. The light should turn on when ready when you open the door and turn off when you close it. If it does not, see the troubleshooting section below.

What to do if the light still does not work

If you installed a new bulb and the light still does not turn on, the problem is not the bulb. The most common culprit is the door switch

The second possibility is a faulty light socket or wiring inside the fixture. If the socket is corroded or the wires are loose, the bulb will not make contact. This is harder to diagnose without opening the fixture, and it usually requires a technician. Call a refrigerator repair service if the bulb is new and the door switch appears to be working.

Incandescent versus LED: which should you buy

Incandescent refrigerator bulbs are cheaper upfront—usually $2 to $5—but burn out every 1 to 2 years because the cold stresses the filament. LED refrigerator bulbs cost $8 to $15 but last 10 to 15 years and use far less electricity. If you plan to keep the refrigerator for more than a few years, LED is the better choice financially and environmentally.

The trade-off is that LED bulbs are less common and may not fit every refrigerator socket. Some older fridges have proprietary fixtures that only accept incandescent bulbs. Check your manual or the socket itself to see what is listed as compatible. If you are unsure, buy the same type and wattage as the bulb you removed—you cannot go wrong with that approach.

Where to buy replacement bulbs

Refrigerator bulbs are sold at hardware stores, home improvement retailers, and online marketplaces. You can also order them directly from the refrigerator manufacturer if you know your model number. The model number is usually on a sticker inside the fridge or on the back of the unit. Ordering from the manufacturer guarantees the bulb will fit, but it often costs more and takes longer to arrive than buying a standard bulb locally.

If you are in a hurry, a hardware store or big-box retailer will have standard A15 or T8 incandescent bulbs in stock. LED refrigerator bulbs are becoming more widely available but may require a special order or online purchase.

Frequently Asked Questions

Can I use a regular household light bulb in my refrigerator?

Not for long. Regular incandescent bulbs are not designed for the cold temperature inside a fridge, and they burn out much faster than refrigerator-rated bulbs. LED household bulbs may flicker or fail in the cold. Always use a bulb labeled for refrigerator use.

Why does my refrigerator light stay on even when the door is closed?

The door switch is stuck or broken. This switch is a small button or lever on the door frame that should press in when the door closes, turning off the light. If it is stuck open or damaged, the light will stay on. You can replace the switch yourself if you are comfortable with basic appliance repair, or call a technician.

Is it safe to touch the bulb with my bare hands?

For incandescent bulbs, it is best to avoid touching the glass with bare skin because oils from your hands can cause hot spots and premature failure. Wear a clean cloth or gloves when handling incandescent bulbs. LED bulbs are less sensitive to this, but it is still good practice to keep them clean.

What wattage should I use if my manual does not say?

Look at the bulb currently in the fridge—the wattage is printed on the base. If that bulb is burned out and unreadable, check inside the light fixture itself; many have the specs printed there. If you still cannot find it, a 40-watt incandescent A15 bulb is the most common size and will work in most refrigerators, though it may be brighter than the original.