Top Christmas Light Bulb Testers

This article reviews the top-rated Christmas light bulb testers for quickly pinpointing bad bulbs. We compared handheld and outlet testers across leading brands like LightKeeper Pro, Ecosmart and Holiday Living. Whether you’re stringing up a tree or decorating the whole house, we’ve got you covered.

Read on for our picks of the best Christmas light testers for quickly diagnosing bulb issues before you hang lights. We’ll also provide tips from holiday decorating pros on how to use these handy tools. 

ALLOSUN Christmas Light Tester and Repair Non-Contact AC Voltage Tester  

The ALLOSUN Christmas Light Tester and Repair Non-Contact AC Voltage Tester is a versatile tool designed to assist both professional electricians and DIY enthusiasts. This all-in-one multi-function light tester is perfect for identifying and fixing issues with Christmas light sets. It can test bulbs, fuses, and the entire light strand, making it easier to locate any burned-out bulbs.

The device features a non-contact voltage detection type and adjustable detection sensitivity, providing both audible and visual indications. The AC voltage detection range is between 12V and 600V, with a frequency of 50 – 60Hz. It also includes a bulb remover, which aids in efficiently removing bulbs from a Christmas light set.

The product is powered by corded electricity and comes in a modern blue color. Its dimensions are 10.3 x 3.8 x 1.2 inches and weigh 3.2 ounces. The package includes the Christmas Light Tester, a user manual, and batteries. The product requires alkaline batteries, which are included in the package.

Zhangzhou Eastern Intelligent Meter Co., Ltd manufactures the ALLOSUN Christmas Light Tester. It is sold by ALLOSUN and shipped from Amazon Fulfillment. The product is eligible for return, refund, or replacement within 30 days of receipt.

This tool helps test Christmas lights and indispensable for electrical, remodeling, and home improvement projects. However, it’s important to note that products with electrical plugs are designed for use in the US, and outlets and voltage differ internationally. Therefore, this product may require an adapter or converter in other countries.

Allsun Christmas Light String Tester Non-Contact Voltage Finder Meter Light Bulb 

The Allsun Christmas Light String Tester is a non-contact voltage finder meter light bulb and fuse checker gun. This tool, available in blue, operates within a 12-600 V AC range and is primarily designed for mini light repairing tasks. It offers both audible and visual indications to help users identify faulty bulbs or fuses in their Christmas light strings.

The device comes with a built-in bulb remover, which aids in efficiently removing bulbs from the light set. However, it’s important to note that the bulb must be removed and installed in the device for testing, making it unsuitable for those seeking a tool to identify a bad bulb without removal.

The Allsun Christmas Light String Tester also features non-contact AC voltage detection, functioning as a power tester within the 12V to 600V AC range. The device is powered by two 1.5V LR44 button cells, and users are advised to check the batteries if they encounter any issues.

One of the key features of this tool is its adjustable detection sensitivity. Users can locate problems in their Christmas light string with a simple button push. The operating environment for this tool is 0°C to 40°C with relative humidity less than 80%, and it is intended for indoor use.

This light repairing tool is versatile and capable of testing bulbs, fuses, and light strands. It can save users money by allowing them to fix their existing lights quickly. The package includes two batteries, and the device can also distinguish between zero and live lines at 220V when the sensitivity knob is set to the lowest.

The Allsun Christmas Light String Tester is easy to use and can test wires, fuses, and bulbs. It is a flexible tool that uniquely checks holiday lights and power to ensure they can be lit and used. Users can find faulty bulbs easily with this tool.

The product has received mixed customer reviews, with some praising its functionality and others criticizing its limitations. It is sold by Global Meter and shipped from Amazon, and it is eligible for return, refund, or replacement within 30 days of receipt. The product is priced at $11.99, with an additional shipping fee of $32.05 for delivery to Morocco.

Light Keeper Pro-The Complete Tool For Fixing Your Christmas Lights

The Light Keeper Pro is a comprehensive tool designed to fix Christmas lights. It is suitable for indoor and outdoor use and is designed to solve common problems associated with miniature light sets and bulbs. The tool plugs your light set into the Light Keeper Pro and presses the trigger, which can automatically fix most issues.

For other problems, the Light Keeper Pro includes an Audible Continuity Detector, a Fuse and Bulb Tester, and additional features such as an easy-to-use Bulb Puller, a Storage Compartment, and extra 2.5 Volt Bulbs. It can fix mini light sets, icicle and net light sets, yard decorations, pre-lit trees, and wreaths. The product comes with batteries included and is UL Listed.

The Light Keeper Pro has received a customer rating of 4.0 out of 5 stars, with users praising its ease of use and value for money. However, some customers found the instruction quality and accuracy slightly lower, at 3.7 out of 5 stars.

The product is sold by ICB and ships from Amazon Fulfillment. It is eligible for return, refund, or replacement within 30 days of receipt. The product is priced at $23.32 and is in stock.

Customer reviews highlight that the tool works well and can save time and effort in fixing Christmas lights. However, some users found the instructions hard to understand and suggested that it might take some time to figure out how to use the tool effectively. Despite this, many users found the tool a lifesaver for their Christmas light issues.

 Count Mini Incandescent Wire String Lights Replacement Bulbs

The product comprises 200 mini incandescent wire string light replacement bulbs designed for indoor and outdoor Christmas decorations. These bulbs are compatible with 50/100/150/200 count incandescent wire string lights and have a voltage of 2.5V, a wattage of 0.425, and an amperage of 0.17.

The bulbs are made from quality material and are safe to use. They emit a warm white light that creates a cozy and romantic festive atmosphere. The bulbs can be used for various occasions, such as Christmas, Halloween, weddings, and more. They are suitable for decorating Christmas trees, wreaths, garlands, patios, pergolas, bushes, hedges, fences, pillars, and commercial buildings like restaurants, hotels, and shopping centers.

The replacement process is straightforward: unplug the light set, remove the broken bulb and its base, ensure the new bulb’s wires are correctly positioned, insert the new bulb at a right angle, and plug the set back in.

Mudder manufactures the product with a green base and warm white bulb. It uses a corded electric power source and is controlled via touch control. The product dimensions are 3.94 x 3.94 x 0.79 inches, weighing 4.4 ounces.

Customer reviews indicate a general satisfaction with the product, with an average rating of 3.8 out of 5 stars. However, some customers noted that the base of the replacement bulbs was smaller than their original bulbs, requiring them to swap the new bulbs into the old bases.

LightKeeper Pro® Incandescent Light Set Repair Tool

The LightKeeper Pro® Incandescent Light Set Repair Tool is a highly effective device designed to fix most incandescent light sets in seconds with a simple trigger squeeze. It employs a Quick Fix Method that addresses the primary cause of light set failure, known as a Shunt Issue (internal bulb failure). If the Quick Fix Method doesn’t resolve the issue because the light set does not have a Shunt Issue, the tool also includes an Audible Voltage Detector to locate the interruption in the circuit.

This versatile tool has a Bulb Tester, Fuse Tester, Bulb Puller, and a Storage Compartment for spare bulbs and fuses. It includes 10 clear replacement bulbs (2.5V, 170mA) and batteries (1.5 Volt Alkaline). The LightKeeper Pro is ideal for pre-lit decorations such as trees, icicle light sets, net lights, wreaths, and garlands. However, it is important to note that this tool is unsuitable for LED, rope, or light sets with control boxes.

The product has been well-received by customers, with over 6 million units sold. Ulta-Lit Tree Company offers a Lifetime Warranty (excluding batteries & bulbs) on this item, ensuring that quality items arrive at your door. Despite its effectiveness, some users have noted that the instructions can be unclear, but online resources like YouTube videos can provide additional guidance.

Overall, the LightKeeper Pro® Incandescent Light Set Repair Tool is valuable for anyone looking to maintain their incandescent light sets and prolong their lifespan. It’s available for purchase on Amazon, where you can find millions of items delivered faster than ever.

2 PCS AC Non-Contact Voltage Tester Pen, Christmas Light Bulb Tester Tool.

The 2 PCS AC Non-Contact Voltage Tester Pen, also known as the Christmas Light Tester Tool, is a product by Urwise. This tool is designed to ensure home safety by testing voltage. It has an LED display and dual-range non-contact voltage testing capabilities. Depending on the selected mode, the tester pen can detect voltages ranging from 12V to 1000V and 48V to 1000V.

The device features adjustable sensitivity and can identify live/null wires. It also includes a low-battery indicator and a portable pencil hook for convenience. The white LED flashlight is energy-saving and valuable in dark environments. The tester pen has high and low-voltage signal indicators and a buzzer alarm that is loud and sensitive. It automatically shuts down after 5 minutes of inactivity to conserve battery life.

The tester pen is designed to react to static electricity, which helps detect electrical appliance leakage. It uses acousto-optic discrimination to differentiate between live and null wires. The device requires four 1.5V batteries and is easy to replace. The product dimensions are 158x22x22mm, and it weighs around 46g.

The tester pen comes in a pack of two and is black. Batteries power it, and it is currently unavailable for purchase. The product has received a rating of 4 out of 5 stars based on 420 customer reviews. The manufacturer offers a return/replacement policy within 24 months without any reason.

KOCKAFEJ Universal Battery Bulb and Fuse Tester.

The KOCKAFEJ Universal Battery Bulb and Fuse Tester is a versatile 3-in-1 device designed to test batteries, bulbs, and fuses. It can test various dry cell 1.5V batteries, including AAA, AA, C, D, and others, and 9V batteries. The tester can also be used for household and automotive fuses and bulbs.

A 9V battery powers the device and features an easy-to-read analog display. The needle on the show moves along a color-coded scale to quickly identify the status of the battery being tested – “Good” (green), “Low” (yellow), or “Replace/recharge” (red). The tester is activated by the battery being checked, so no additional batteries are required for its operation.

The KOCKAFEJ tester is compact and lightweight, making it easy to carry. Its dimensions are 15×6.6×3.2 cm, and it weighs 160 grams. Before testing, users are advised to disconnect all power to the tested circuit and thoroughly discharge all capacitors.

This product has received positive customer reviews, with many praising its functionality, ease of use, and value for money. It is considered a handy tool at home, in the office, or a workshop. However, as of June 26, 2021, the product is currently unavailable, and it is unclear when or if it will be back in stock.

LIGHT KEEPER PRO The Complete Tool.

The LIGHT KEEPER PRO is a comprehensive tool for repairing incandescent Christmas holiday light sets. It comes with an additional bonus of 50 replacement bulbs. This tool is handy for fixing string light decorations with a simple trigger squeeze.

The product promises a lot in its description, and according to user reviews, it delivers on most of these promises. Users have found the instructions well-crafted and easy to follow. The tool is effective in testing fuses and bulbs, and it also comes with spare bulbs, which users have found handy.

One of the critical features of this tool is that it allows you to plug it into a bulb plug-in spot and then click the trigger multiple times to force an electrical signal through the light string. This feature has proven helpful when one bad bulb causes the entire series to fail.

However, the tool’s effectiveness can vary. While it has worked perfectly on some light strings, it has been less successful on others. Despite this, users have appreciated having the tool as it verifies whether a bulb is good.

The LIGHT KEEPER PRO is battery-powered and comes complete with batteries. It includes a built-in bulb and fuse tester, a storage compartment for spare bulbs and fuses in the handle, and a bulb puller. It offers two repair methods: Quick Fix Repair and Audible Voltage Detector.

This tool is not intended for LEDs, rope lights, or light sets with control boxes. It is designed explicitly for incandescent light sets, including pre-lit trees, wreaths, garlands, icicle lights, and net lights.

Overall, the LIGHT KEEPER PRO is a must-have tool for every decorator, saving time and money by preventing the need to throw away light sets and pre-lit décor when lights go out.

Allsun Christmas Light Tester Non-Contact Voltage Tester.

The Allsun Christmas Light Tester is a non-contact voltage tester designed to help users quickly identify burned-out bulbs in their Christmas lights. This versatile tool can be used as an AC power tester for voltages ranging from 12V to 600V. It is powered by two 1.5V LR44 button cells, and users are advised to check the batteries if they encounter any issues with the device.

In addition to the light tester, the package includes 50 mini-replacement light bulbs suitable for Christmas tree decorations. These bulbs operate at 2.5 volts, drawing 0.17 amperes and producing 0.43 watts of power. They come in five colors: red, purple, blue, pink, and green. The multi-color design and warm light emitted by these bulbs can create a comfortable atmosphere in any setting.

These replacement bulbs can be used indoors and outdoors, making them ideal for decorating homes during the holiday season. They can be connected to light strings on Christmas trees, wreaths, garlands, and other similar decorations.

The Allsun Christmas Light Tester is easy to use and can test wires, fuses, and bulbs. It is a flexible tool that allows users to ensure their holiday lights are functioning properly and can be lit. With this device, users can easily locate faulty bulbs.

The product dimensions are 7.09 x 1.18 x 1.77 inches, weighing 0.13 pounds. The manufacturer is Zhangzhou Haimao Dianzi Keji Co., LTD. As of January 7th, 2023, the product is ranked #307,874 in Tools & Home Improvement and #318 in Voltage Testers on Amazon. It has received a rating of 4.3 out of 5 stars based on 38 customer reviews.