612 Vermont

3.5 Volt Mini Christmas Replacement Bulbs for Incandescent String Lights, Pinched Base, 50 Count

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• 3.5 volt mini replacements bulbs for incandescent Christmas lights
• Typically used in 35 or 70 count string lights
• Pinched base shape fits most light sets
• Value pack includes 50 lamps
• Choose from Clear, Multi, Red, Green, Blue, Yellow, Amber, and Pink
• Available in two wattages: 125 mA (0.43 Watt) OR 200 mA (0.70 Watt)
• Please, check the white tag near the plug to confirm bulb specifications

These 3.5V mini Christmas replacement bulbs for incandescent string lights are made with a pinched base. This unique shape guarantees a secure fit in most every string light (regardless of whether the pinched base is required or not). Value pack includes 50 clear bulbs. 3.5 volt bulbs are typically used in strands of 35 or 70 lights and are common on multi-function light sets and other novelty light sets made for display in yards or windows.

Please be sure to reference the tag near the male plug on your light set to confirm both the voltage and the wattage for your string. Voltage, amperes, and wattage must all match to your light set.

How to determine the voltage required: Reference the tag near the plug on existing light set. If the voltage is not specifically stated for the individual bulbs, then take the total voltage for the light set and divide by the number of lights in one circuit. 3.5V bulbs are most often used in 35 light sets (one-way) and 70 light sets (two-way).

Determine the correct wattage: Reference the tag near the plug on existing light set. Look for wattage for the individual light bulbs.  If not available for the individual bulbs, then figure the wattage for the entire light set and divide by the number of bulbs in the strand to figure out the wattage for an individual replacement bulb. 

These 3.5V replacement bulbs are sold 'naked' which means that they do not come with any plastic husk. Please be sure to keep the plastic husk that the old bulbs are removed from so that these will incorporate into your string light. The unique pinched base shape to these bulbs allows them to set fully down inside of most any husk to make meaningful contact with the brass contacts inside.

If you have any questions, or need help troubleshooting, please feel free to give us a call at 1-877-750-0971. We can also be reached through the contact us form on our website.

Bulb Dimensions:
Length of glass - 7/8 inch
Length of wires - 3/8 inch
Diameter of glass - 5 mm


prop-65-warning-6-pt.png WARNING: This product can expose you to chemicals including lead, benzene, and cadmium, which are known to the State of California to cause cancer, birth defects, or other reproductive harm.  Wash hands after use.  For more information go to

Additional Details


53 Reviews

  • 5
    3.5 Volt Mini Christmas Replacement Bulbs for Incandescent String Lights, Pinched Base, 50 Coun

    Published by Unknown on Feb 1st 2023

    We’ve ordered replacement lamps from 612 Vermont before and they are quick to ship product to us. No Problems.

  • 5
    3.5 volt

    Published by Susan S. on Jan 20th 2023

    Just what I needed for a 35 light set. My garland had 2 sets of 35.

  • 5
    Replacement bulbs

    Published by Unknown on Jan 3rd 2023


  • 5
    3.5 Volt Mini Christmas bulbs

    Published by Paul S. on Jan 1st 2023

    Excellent product & service. A difficult bulb to find with these amps, but you had them!

  • 5
    saved antique christmas light string

    Published by Theresa E. on Dec 26th 2022

    The folks at 612 Vermont have know saved 3 antiqueish items for me now - they listened to my tale of woe and came up witht he perfect mini bulb everytime - this place is a treasure!!!!

  • 5
    3.5 mini lamp replacement

    Published by Kristin D. on Dec 22nd 2022

    This was a product I could not find except online. I chose vermont because they had helped someone else that gave a high review. Derek spent time talking to me via phone to come up with the proper product and I and the neighbors are now admiring my beautiful outdoor decorations.

  • 5
    Great Replacement Bulbs and Service

    Published by Unknown on Dec 16th 2022

    These arrived promptly and worked perfectly!

  • 5

    Published by Bob on Dec 12th 2022

    had difficulty finding this product elsewhere. It was perfect and customer service was excellent. I would buy agaIN.

  • 5
    3.5 volt mini Christmas replacement bulbs

    Published by Unknown on Dec 11th 2022

    It's nice they carry this odd voltage. Excellent quality and fast delivery.

  • 5
    Great replacements

    Published by Gary R. on May 9th 2022

    I have a special Christmas Angel fixture that I have had for years and realized that many burned-out bulbs needed to be replaced. I found the correct type and ordered them and they worked great. I am so happy to be able to restore this with the replacement bulbs that I ordered!

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