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Mudder Replacement Mini Bulbs – Weather-Resistant Glass Christmas Lights for Patio Porch and Front Yard Displays

Mudder Replacement Mini Bulbs – Weather-Resistant Glass Christmas Lights for Patio Porch and Front Yard Displays

Regular price $9.85 USD
Regular price $15.50 USD Sale price $9.85 USD -36%
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Why you'll love it

  • Cheaper than buying a whole new light string when only a few bulbs are burned out
  • Pack sizes from 50 to 300 cover anything from a single wreath to a full multi-tree display
  • Glass construction (not plastic) better matches the warm, classic look of vintage-style incandescent strands
  • 1000-hour rated life means a 300-bulb pack can service multiple seasons of wear and tear
  • Indoor/outdoor rated so the same pack works for both tree lights and exterior bushes or railings
  • Quality-inspected bulbs with documented 2.5V/0.17A spec to match common 50/100/150-light string sets

Perfect for

  • Replace individual burned-out bulbs on existing 50, 100, or 150-count Christmas light strings without rewiring the whole set
  • Stock up spare bulbs during holiday storage so a single dead bulb never darkens an entire string
  • Refresh aging bulbs on artificial Christmas trees, wreaths, and garlands before the December season
  • Maintain consistent green or red/green color tone across indoor and outdoor holiday displays
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How to Replace a Mini Light Bulb

Step 1 Keep your light set unplugged at first. Take out the broken light with its base and throw it away.

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Warm Note

Double check the wattage (or amperes) required for your light set to see if it fits these light bulbs before purchasing.

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Warm Note

Base measurements

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Warm Note

To avoid short circuit, never let the 2 wires touch.

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Warm Note

Keep away from children and store them carefully.


Product Information
Package includes: enough replacement mini light bulbs, sufficient for you to replace the broken bulbs on Christmas tree light bulbs and store for a rainy day Size details: the base measures 0.43 inch in length, 0.3 inch of width on inserted part of base, and the bulb measures 1.06 inch in length, 0.2 inch of diameter, please check the specs on your own lights carefully before purchasing Specifications: 2.5 volts, 0.425 watt, 0.17 ampere, Christmas mini incandescent bulbs are made of nice quality material and well inspected and tested by manufacturer, designed for 50, 100 or 150-light bulbs; Before purchasing, please check whether the power of the old light string is consistent with this bulb; A power fluctuation of 0.05 is suitable How to replace: first, keep your light set unplugged, and take out the broken light with its base and throw it away, next, check that the two wires of the new bulb are properly positioned on either side of the base (Do not let them cross or touch), then, insert the new light at a right angle and make sure it's pushed in completely, and last, plug the set back in to see if you are successful Applicable occasions: our replacement mini light bulbs can fit for artificial Christmas tree, wreaths and garlands light bulbs well, ideal for replacing existing bulbs that have burn out or grown old; Warm tips: if the plastic housing did not match your light, please use our glass or wire in your original plastic housing
Brand ‎Mudder Light Type ‎Incandescent Special Feature ‎/ Bulb Shape Size ‎T Bulb Base ‎B15D Incandescent Equivalent Wattage ‎0.43 Watts Specific Uses For Product ‎/ Light Color ‎/ Voltage ‎0.42 Unit Count ‎150 Count Number of Items ‎1 Brightness ‎[Typical range for incandescent bulbs] Shape ‎Tubular(T) Material ‎Aluminum Model Name ‎/ Indoor/Outdoor Usage ‎Indoor, Outdoor Power Source ‎Corded Electric Color Rendering Index ‎80 Power Consumption ‎0.43 Watts Item Package Quantity ‎150 Light Source Type ‎Incandescent Light Source Wattage ‎0.43 Watts Product Dimensions ‎0.2"W x 1.26"H Accepted voltage frequency ‎100 to 120 Volts and 60 Hertz Control Method ‎App Average Life ‎1000 Hours Manufacturer ‎Mudder Color ‎Clear, Green Part Number ‎/ Item Weight ‎3.84 ounces Item model number ‎/ Finish types ‎Clear Included Components ‎/ Special Features ‎/ Batteries Required? ‎No Wattage ‎0.43 Watts

Frequently Asked Questions

Are these bulbs truly rated for outdoor use on my patio and front porch?

Yes. The bulbs are indoor and outdoor rated, so the same pack that refreshes your living room tree can also service exterior bushes, railings, and patio string lights.

Will rain or morning dew damage the bulbs on my outdoor light display?

The bulbs themselves are designed for outdoor use, but the surrounding string, socket, and wiring must also be outdoor rated. The bulbs will not be the weak point in a properly rated outdoor set.

Can I carry one pack between indoor and outdoor projects without buying two sets?

Yes. The indoor/outdoor rating means a single pack of 50, 100, 150, or 300 bulbs can service both your indoor tree and your exterior bushes or railings, which is convenient for mixed indoor-outdoor holiday layouts.

Do these bulbs hold up on a restaurant patio that stays lit for long evening hours?

With a 1000-hour average rated life, the bulbs are designed to handle extended seasonal use, making them suitable for venue patios, storefronts, and event spaces that rely on longer daily run times.

Will the glass bulbs survive being stored in a garage or storage shed between seasons?

Yes. Glass is more resistant to heat and UV-related wear than many plastics, and the bulbs are built for repeated seasonal handling. The main precaution is storing them in the original pack or a divided container to prevent contact breakage.

Are these bulbs good for lighting a garden pathway or outdoor dining area?

If your existing pathway or patio lights are 50/100/150-count mini light strings with a bayonet base, these replacement bulbs will keep the set glowing consistently through the season.

Can I take them along for outdoor events like a holiday market booth or pop-up dinner?

Yes. Their small size and low 0.425W rating make them easy to pack as spares for any temporary outdoor light installation, so a single dead bulb doesn't ruin the look of your booth or table.

Do these bulbs perform as well as the ones that came with my outdoor string lights?

Because the 2.5V/0.17A spec matches standard mini light strings, they are designed to perform equivalently to the original bulbs in both brightness and tone.

How do these compare to weatherproof LED replacement bulbs?

Incandescent bulbs like these give a warmer, more classic glow and are typically a lower-cost replacement, while weatherproof LED replacements last longer and use less energy. The right choice depends on whether you prioritize traditional ambiance or long-term efficiency.

What's the difference between these and standard replacement bulbs from a big-box store?

These bulbs are spec-matched to 2.5V/0.17A mini light strings and come in dedicated pack sizes up to 300, which is often more flexible than the small blister packs sold at general retail.

How do these compare to buying a whole new outdoor light string?

Replacing individual bulbs is significantly cheaper than buying a new light string when only a few bulbs are burned out, and it avoids the hassle of rewiring an entire outdoor run.

Will outdoor temperatures cause the bulbs to burn out faster?

Incandescent bulbs can be more sensitive to moisture infiltration at the socket than LEDs, so outdoor longevity depends more on the quality of the string and connections than on the bulbs alone.

Are these bulbs safe to leave plugged in overnight outdoors?

As with any incandescent string, follow the manufacturer's instructions for your specific light set and use a GFCI-protected outdoor outlet. The bulbs themselves are rated for the use, but the wiring and outlet should be outdoor rated as well.

What if my outdoor string uses a different voltage than 2.5V?

These bulbs are specifically rated at 2.5V/0.17A for 50/100/150-count mini light strings. Using them in a higher-voltage set can cause immediate burnout, so always match the spec printed on your existing bulbs.

Can I mix indoor and outdoor replacements in the same pack without losing consistency?

Yes. Because the bulbs are indoor/outdoor rated and the electrical spec is identical, the same pack will perform consistently whether the bulbs end up on a tree, a porch rail, or a patio umbrella.

Will wind or vibration on a porch railing shake the bulbs loose?

The bayonet base locks into the socket with a push-and-twist motion, similar to a standard mini light. Once seated, the bulbs stay in place under normal outdoor conditions.

How do I replace a burned-out bulb on my Christmas light string?

Unplug the light string first, then gently push the old bulb in and twist counterclockwise to release the bayonet base from the socket. Insert the new bulb, push in, and twist clockwise until it locks. Plug the string back in to test.

How do I know how many replacement bulbs I should buy?

A common rule of thumb is to keep 10–20% of your total bulb count as spares. For a 100-bulb string, a 50-bulb pack is a practical minimum; for multi-room or multi-tree displays, a 150 or 300-bulb pack provides season-long coverage.

How should I store spare bulbs between holiday seasons?

Keep the bulbs in the original box or a divided plastic container in a dry, room-temperature location like a holiday decor bin. Avoid loose storage where bulbs can roll and contact each other, which can lead to breakage.

Are these bulbs compatible with my 50-count mini light string?

Yes, provided your 50-count string uses 2.5V/0.17A mini bulbs with a bayonet base. Always confirm the voltage and base type printed on your existing bulbs before ordering replacements.

Will these bulbs work in a 100-count or 150-count light set?

Yes. The 2.5V/0.17A rating is standard across 50, 100, and 150-count mini light strings, so the same replacement bulb works across all three common set sizes.

What comes in the box when I order?

Each box contains the selected quantity of replacement mini incandescent bulbs in your chosen color combination (Clear/Green or Red/Green). No tools, bases, or additional accessories are included — these are direct replacement bulbs only.

Are these bulbs safe to leave on for long periods of time?

Incandescent bulbs generate more heat than LEDs, so it's best to follow the run-time guidance from your light string manufacturer and avoid leaving any mini light string unattended for extended periods. Never use a string with damaged wiring, even with new bulbs.

Will a single failed bulb darken my whole string, and will replacing it fix the issue?

On many traditional incandescent mini light strings, a single bad bulb can disable the rest of the set. Replacing the failed bulb with a spec-matched 2.5V/0.17A replacement is typically the correct fix, though some sets also have a fuse in the plug that may need checking.

What's the difference between incandescent and LED mini replacement bulbs?

Incandescent bulbs like these produce a warm, classic glow, are typically lower cost up front, and are interchangeable with traditional mini light strings. LED replacement bulbs last significantly longer, use less energy, and run cooler, but have a different color tone and base design on many older strings.

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