Bulb Circuit Testers of 2025
Best Choice1
OEMTOOLSOEMTOOLS 25936 Mini Circuit Tester for 6 Volt and 12 Volt Systems, Open Circuit Finder, Ground Testing Tool, Includes Automotive Probe and Bright Light Bulb
Main highlights- PRODUCT SPECIFICATIONS: (1) Mini Electric Circuit Tester; Tests 6/12 V Systems; 6 Ft. Hi-Vis Coil Cord; Bright, High-Intensity Bulb; Sharp Stainless Steel Probe; Threaded for Add-On Alligator Clips; Molded Strain Relief; Insulated, Heavy-Duty Clip
- IDEAL DESIGN: This open circuit detector features a small, ergonomic design that is ideal for bench top use; Short circuit finder's compact size is ideal for use in tight areas; Circuit tester automotive tool includes a high-intensity test light bulb
- HIGH-QUALITY MATERIALS: Our grounding tester is threaded for an add-on alligator clip, which is included in the circuit tester kit, and an insulated heavy-duty clip; Electrical circuit tester includes a sharp stainless steel probe for easy probing
- EASY IDENTIFICATION: The circuit mini tester has a 6 foot high-visibility light coil cord for easy identification in your automotive tool kit or mechanic tool set; Hi-Vis circuit coil tester stretches from 36" to 72" for extra length and flexibility
- 6 AND 12 VOLT CIRCUIT TESTER: Our circuit testers are designed for use with 6 Volt and 12 Volt electrical systems to locate hot circuits and troubleshoot primary circuits; Automotive circuit tester acts as a short finder and ground tester
9.9Exceptional
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Value for Money2
OEMTOOLSOEMTOOLS 25020 6V-12V Circuit Tester Replacement Bulb 2 Pack, Automotive Test Light Replacement Bulb, Circuit Tester Automotive Replacement Bulbs
Main highlights- Reinforcements: Replace your circuit tester bulb as soon as its light begins to fade; Maintaining your circuit testing tools ensures consistently accurate circuit test results
- Product Details: 2 pack set includes 6V to 12V replacement bulbs; Compatible with OEMTOOLS 6V to 12V Circuit Testers
- Let It Shine: Add a visual element for more accurate circuit testing results; High intensity test light bulb shines through the clear housing of a circuit tester for easy results
- Interchangeable: These circuit tester bulbs are made to replace bulbs in an OEMTOOLS 25018 6V and 12 V Circuit Tester; Can also be used on non-OEMTOOLS circuit testers
- Be Prepared: Ordering a replacement set of circuit tester bulbs ensures that the inconvenience of a misplaced or broken bulb is easily resolved and forgotten
9.7Exceptional
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3
WINAMOO39% OffPremium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring Wire, Sharp Hard Steel Probe Vehicle Circuits Low DC Voltage Light Tester
9.9 clearly written9.9 Simple to use9.9 PrecisionWhy we love it
Wide range of applications
High quality LED bulb
Bidirectional current testing
9.6Exceptional
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4
WINAMOOTest Light Automotive, 6V-12V-24V Circuit Tester with Light for Continuity Voltage Electrical Fuse Tester, Car Electric Tester Pen ABS Handle with Sharp Probe&Alligator Clip for Sedan, SUV, RV, Truck
Main highlights- 【Wide Application】DIY automotive circuit tester/circuit test light with 6-24V DC voltage testing range, ideal for checking various vehicles electrical circuits, quickly check automotive headlights, taillights, turn signal circuits, faulty sockets, fuse connections, also for testing other 6-24v DC wirings and circuits. Making it an essential tool in electrical troubleshooting.
- 【Sharp Probe & Large Alligator Clip】Long sharp stainless steel probe for piercing wires, also for hard to reach tight areas. Anti-bending design of the tail wire makes no worry about bad contact of the line. Along with large size alligator clip for easy one-hand operation, will definitely improve your working efficiency.
- 【Safe & Durable Use】This electrical tester pen adopts ergonomic handle for comfort and a safe grip. Constructed with high quality ABS body with higher transparency, shatter-proof and durable, can withstand long-term rough use. Premium insulation protective rubber tip protects you against electric shock, heat insulation and oil resistance for safe operation.
- 【Bright & Reliable Indication】A quality bulb is built in this light tester, where provides a bright and reliable light indication, guiding you through intricate electrical tasks to the source of the problem with ease. Highly visible light indicates circuit's signal, the brightness of the light will be vary with the different measured voltages.
- 【Bidirectional Current Voltage Testing】You can attach the alligator clamp either to negative or positive ground, while use the probe to touch the other side to diagnose short circuit or defective fuse. Its lightweight and easy to carry, will not take up much space in your toolbox or storage area, convenient to take it with you when you drive out.
9.5Excellent
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5
WINAMOOReplacement LED Bulb Part for WITL103A Automotive Circuit Tester/Test Light
Main highlights- This is an accessory part only for WINAMOO WITL103A Test Light / Circuit Tester.
- Package includes 5 pcs 6-24V Test Light Replacement LED Bulb.
9.2Excellent
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6
JASTINDHeavy Duty Automotive Circuit Tester, Premium 6-24V Test Light with Extended Spring Test Leads & Sharp Piercing Probe, Circuit Voltage Tester with Replacement Indicator Light for Car/Vehicles
9.9 clearly written9.7 worth the money9.7 Simple to useWhy we love it
Heavy Duty Construction
High Quality Materials
Long Wire Cord
9.1Excellent
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7
WINAMOOReplacement Dual Color LED Bulb Part for WITL103B Automotive Circuit Tester/Test Light
Main highlights- This is an accessory part only for WINAMOO WITL103B Test Light / Circuit Tester.
- 6-24V Test Light Replacement Dual Color LED Bulb.
9.0Excellent
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8
LisleLisle 24560 Replacement Bulb for Computer Safe Circuit Tester, One Size, Factory
Main highlights- The red light indicates positive polarity, green indicates negative polarity
- Safe for automotive computers; Won't damage sensitive electronic components
- Replacement part for Lisle tool- 24550
- For more information check the main Lisle tool- 24550
- Draws less than 21 milliamperes at 12 volts DC; Operating range 3-28 volts
8.9Very Good
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9
ATOBLINATOBLIN Automotive Test Light, 6V-12V-24V DC Circuit Tester with Dual Color LED Bulb Light for Continuity Voltage Electrical Fuse Tester with Replacement Indicator Light for Car, Truck, Vehicles
Main highlights- WIDE APPLICATION: DIY automotive circuit tester/circuit test light with 6-24V DC voltage testing range. Quickly check various vehicles electrical circuits and diagnoses issues, including alternator tester functionality for car/truck/SUV/boat charging systems. Also ideal for testing other 6-24v DC wirings and circuits.
- UNIQUE DESIGN- ANTI-LOST NEEDLE GUARD PROTECTION: Adopt the integrated structure design of the probe protection cover, needle guard function is added to ensure that there will be no stab wounds and the guard will not be lost. Convenient to carry and take it wherever you go.
- DURABLE & FLEXIBLE: The spring wire can be freely stretched up to 96inches, with a wide measuring area; Anti-bending design of the tail wire, no need to worry about bad contact of the line.
- DUAL LED INDICATION, BIDIRECTIONAL TESTING: This auto circuit test light is a bidirectional light tester. You can attach the alligator clamp either to negative or positive ground, red light indicates positive polarity and blue light indicates negative polarity.
- 100% SATISFACTION: If you have any dissatisfaction for any reason, please feel free to let us know and we will do our best to assist you.
8.6Very Good
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10
SchuhRiaTest Light Automotive,Circuit Tester 6V-12V-24V,ABS Handle Material,Long Steel Probe Coating PU and Alligator Clip, for Continuity Voltage, for Sedan, SUV, RV, Truck (Black,1-Pack)
Main highlights- 【Wide Application】DIY automotive circuit tester/circuit test light with 6-24V DC voltage testing range, ideal for checking various vehicles electrical circuits, quickly check automotive headlights, taillights, turn signal circuits, faulty sockets, fuse connections, also for testing other 6-24v DC wirings and circuits.
- 【Quality Quality Bulb】High visibility bulb to indicate circuits’ signal, the brightness of the light will be different with the different measured voltages.
- 【Quality Made】Sharp stainless steel probe for piercing wires, also for hard to reach tight areas. Insulation protective rubber tip protects you against electric shock. Constructed with high quality acetate fiber body, shatter-proof, more durable than others. Premium PU spring wire, heat insulation and oil resistance for safe use.
- 【Convenient Use】High quality wire offers more flexibility, lighter and more durable than normal cable wires, convenient for use and storage, along with large size alligator clip for easy one hand operation, will definitely improve your working efficiency.
- 【Brand Sevice】We don‘t wage a price war, but only continue to provide quality products to customers and guarantee stable quality.
- 【Bidirectional Current Voltage Testing】You can attach the alligator clamp either to negative or positive ground, while use the probe to touch the other side.
8.5Good
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