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Battery Life Test Kit

Test battery life with included materials and instructions.

SKU: KITBLT
Clamp Holder, Right Angle (Bosshead)

Zinc-alloy clamp for connecting rods at right angles.

SKU: AS2063_01
Clamp Holder, Right-Angle (Bosshead)
Clamp Holder, Right-Angle (Bosshead)

Sturdy and adjustable clamp for laboratory equipment.

SKU: MSP35011
D Cell Battery Holders, Linkable, Easy Plug

Linkable D Cell Battery Holders with Easy Plug Connection.

SKU: PBH1DL
Hook Collar Clamp (12 mm)

versatile and practical tool widely used in labs, classrooms, and other scientific settings

SKU: KE40101-21A
Lamp Holder (E10B26), General Purpose Lamp Stand

Small metal base for low voltage light bulbs.

SKU: E10B26
Lamp Holder (E10B29), Metal Lamp Stand With Pins

Compact lamp holder for circuit boards.

SKU: E10B29
Lamp Holder - Miniature Metal Lamp Stand

Miniature metal lamp holder for educational and craft projects.

SKU: E10B31
Lamp Holder, Black Color (Miniature Base, Bulb Socket)

Miniature light bulb base for science projects and electronics.

SKU: MINIBASEB
Lamp Holder, Lamp Base, Elevated

Widely used lamp holder for E10 miniature light bulbs up to 24V

SKU: E10B21
Lamp Holder, White Color (Miniature Base, Bulb Socket)

Miniature light bulb base for science projects and electronic ideas.

SKU: MINIBASEW
Lever Support (Balance Support)
DBS002 Lever Support - Precision Balance and Lever Educational Tool

Sturdy lever support for balance and torque demonstrations.

SKU: DBS002
Linkable Battery Holder 1AA With Binding Posts

Easily connect AA batteries with binding posts.

SKU: PBH1AA3F
Support Rings, Extension (Plain Extension Rings)
SUPPORT RINGS, EXTENSION (PLAIN EXTENSION RINGS)

Zinc-plated steel rings for clamp holders

SKU: 2042
Test Tube Holder, Wire Form With Finger Grip

Securely holds test tubes with ease.

SKU: TTHWIRE
Battery Life Test Kit (KITBLT)

Battery Life Test Kit (Free Shipping)


The Battery Life Test Kit (Free Shipping) is the perfect tool for anyone who wants to test the lifespan of general purpose alkaline (dry cell) batteries. This kit includes four battery holders, four lamp holders, 10 light bulbs, mounting board, and enough screws to assemble a basic electric circuit for testing. With online instructions included, you can easily compare the life of AA batteries and record your data to make a bar chart. The Battery Life Test Kit is an essential tool for anyone who wants to understand the lifespan of their batteries and ensure they are getting the most out of their devices.


Product Specifications:

Product Name Battery Life Test Kit (Free Shipping)
Battery Type General Purpose Alkaline (Dry Cell)
Included Materials Four Battery Holders, Four Lamp Holders, 10 Light Bulbs, Mounting Board, Screws
Functionality Assemble basic electric circuit to test battery life and compare AA batteries, record data and make bar chart

Perfect for:

  • Science teachers and educators
  • Students learning about electricity and circuits
  • Parents teaching their children about battery life
  • Individuals interested in DIY projects and experiments
  • Professionals working with batteries and electronics
  • Anyone looking to save money by testing the life of their batteries

SKU: KITBLT
Clamp Holder, Right Angle (Bosshead) (AS2063_01)

Clamp Holder, Right Angle (Bosshead)


The Clamp Holder, Right Angle (Bosshead) is a versatile and durable tool that is designed to connect two rods at right angles, forming an L or T shape. Made of die-cast zinc alloy with plated brass thumbscrews, this clamp holder can accept or be clamped to rods up to 18 mm diameter. It is mainly used to connect different clamps to the vertical rod of a stand, making it an essential tool for laboratory experiments, workshops, and other applications. However, it is important to note that this clamp can break by excessive force on the screw.


Key Features:

  • Connects two rods at right angles to form L or T shape
  • Made of die-cast zinc alloy
  • Plated brass thumbscrews
  • Accepts or clamps to rods up to 18mm in diameter
  • Used to connect different clamps to vertical rod of a stand
  • Caution: may break with excessive force on screw

Product Specifications:

Product Name: Clamp Holder, Right Angle (Bosshead)
Product Type: Holder, Clamp, Right Angle, Bosshead
Material: Die-Cast Zinc Alloy with Plated Brass Thumbscrews
Maximum Rod Diameter: 18 mm
Intended Use: Connecting Two Rods at Right Angles to Form L or T Shape
Compatibility: Can Accept or Be Clamped to Rods Up to 18 mm Diameter
Main Use: Connecting Different Clamps to the Vertical Rod of a Stand
Caution: This Clamp Can Break by Excessive Force on Screw

Similar Products

  • Double Clamp Holder, Right Angle
  • Swivel Clamp Holder, Right Angle
  • Universal Clamp Holder, Right Angle
  • Heavy Duty Clamp Holder, Right Angle
  • Adjustable Clamp Holder, Right Angle

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

CAUTION: This clamp holder can break if excessive force is applied to the screw. Use with caution and do not exceed recommended force limits.

Perfect for:

  • Science teachers and laboratory technicians
  • College and university students studying science, engineering, or technology
  • Research and development professionals in the fields of chemistry, physics, or biology
  • Industrial workers in manufacturing or quality control
  • DIY enthusiasts and hobbyists who enjoy experimenting with science projects
  • Anyone who needs a reliable and sturdy clamp holder for their laboratory or workshop

SKU: AS2063_01
Clamp Holder, Right-Angle (Bosshead)
Clamp Holder, Right-Angle (Bosshead) (MSP35011)

Right-Angle Clamp Holder (Bosshead)


The Right-Angle Clamp Holder (Bosshead) is a versatile tool for laboratory use. Made of cast iron and painted black, this clamp holder features a large, easy-to-use thumbscrew. It measures 4.5 inches (10cm) long and can support rods up to 3/4 inches (18 millimeters) in diameter. This tool is perfect for securing laboratory equipment in a variety of positions and angles.


Product Specifications:

Product Name Clamp Holder, Right-Angle (Bosshead)
Product Type Holder, Clamp, Right-Angle, Bosshead
Material Cast Iron
Color Black
Thumbscrew Size Large, easy to use
Length 4.5 inches (10cm)
Rod Support Size Up to 3/4 inches (18 millimeters)

Perfect for:

  • Science teachers
  • Lab technicians
  • University students in science programs
  • High school students in science classes
  • Industrial professionals in the manufacturing industry
  • Anyone in need of a sturdy clamp for holding items at a right angle

SKU: MSP35011
D Cell Battery Holders, Linkable, Easy Plug (PBH1DL)

D Cell Battery Holders - Linkable and Easy Plug


This battery holder for D cell batteries is made of high impact plastic and is perfect for heavy classroom use. The easy plug feature makes it simple to replace batteries without the need for any tools.


Unique Selling Points and Benefits:

  • Flexible and versatile use in various applications
  • Durable and long-lasting
  • Cost-effective solution for powering devices
  • Can be customized to fit specific needs
  • Safe and reliable performance

Product Specifications:

Product Name D Cell Battery Holders, Linkable, Easy Plug
Material High Impact Plastic
Ideal Use Heavy Classroom Use
Connection Type Series or Parallel
Battery Type D Cell Batteries

Similar Products

  • D Cell Battery Holders (Non-Linkable)
  • C Cell Battery Holders (Linkable)
  • AA Battery Holders (Easy Plug)
  • 9V Battery Holders (Linkable)
  • D Cell Battery Holders (Waterproof)

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

CAUTION: Use caution when connecting battery holders in series or parallel to avoid electrical hazards. Do not expose battery holders to extreme heat or fire.

Perfect for:

  • Science teachers
  • Classrooms
  • STEM educators
  • DIY enthusiasts
  • Electronics hobbyists
  • Students learning about circuits and electricity

SKU: PBH1DL
Hook Collar Clamp (12 mm) (KE40101-21A)

12 mm Hook Collar Clamp


The 12 mm Hook Collar Clamp is a versatile and practical tool widely used in labs, classrooms, and other scientific settings. Its main purpose is to suspend various apparatus like spring balances, cords, pendulums, and other equipment from support rods or cross members. Constructed from durable metal, the collar is fitted with a reliable thumbscrew for secure attachment and adjustment. This easy-to-use design makes it a useful accessory for various experimental setups, contributing to a more efficient and safe work environment.


Key Features

  • Made from durable metal.
  • Designed to suspend various apparatus from support rods or cross members.
  • Fitted with a reliable thumbscrew for secure attachment and adjustment.

Product Specifications

Material Metal
Rod Compatibility 12 mm diameter

Similar Products

  • 10 mm Hook Collar Clamp
  • 15 mm Hook Collar Clamp
  • Adjustable Collar Clamp with Hook
  • Heavy-Duty Metal Hook Collar Clamp
  • Multi-Purpose Laboratory Hook Collar Clamp

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.
Perfect for Laboratories, Educational institutions, Research institutions, Industrial users, DIY science enthusiasts.
SKU: KE40101-21A
Lamp Holder (E10B26), General Purpose Lamp Stand (E10B26)

E10B26 Lamp Base


General Information: The E10B26 Lamp Base is a widely used metal lamp base that serves as a component of many plastic lamp holders. It is commonly used in hobby, craft, and education applications.

Key Features:

  • Small wings with extra hole for contact or mounting
  • Overall length of 28 mm, width of 10 mm, and height of 13 mm
  • For low voltage applications only, not recommended for applications over 24 Volts
  • Simplifies connections for multi lamp circuits in series or parallel

Additional Description: The E10B26 Lamp Base is also known as a lampholder, lamp base, or lamp stand. This is a light bulb base for all miniature light bulbs on our website.

Material Metal
Size 28mm x 10mm x 13mm
Color Gray
Voltage Rating 24 Volts or less
Caution For low voltage applications only.
This product is perfect for hobbyists, craft enthusiasts, and educators in need of a lamp base for educational purposes. The E10B26 Lamp Base simplifies connections for multi lamp circuits in series or parallel, making it an ideal choice for those looking to streamline their lighting setup. However, it should be noted that this lamp base is only suitable for low voltage applications and is not recommended for applications over 24 Volts.

Similar Products

  • Miniature Lamp Holder (E12B26)
  • Plastic Lamp Stand Holder
  • Flexible Lamp Stand
  • Universal Lamp Holder (E10B27)
  • Multi-Lamp Circuit Connector

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.
Caution: For low voltage applications only.

Perfect for:

  • Hobbyists and craft enthusiasts
  • Teachers and educators in need of a lamp base for educational purposes
  • Those looking to simplify connections for multi lamp circuits in series or parallel

SKU: E10B26
Lamp Holder (E10B29), Metal Lamp Stand With Pins (E10B29)

E10B29 Lamp Base


The E10B29 Lamp Base is a small and durable lamp holder designed for installation on circuit boards and breadboards. It features two contact pins that can be inserted and soldered. This lamp base has a small footprint design, high heat resistance, and simple and durable construction. It is mountable on circuit boards and breadboards, making it a popular choice among craft workers due to its ability to be installed very close to each other or even touching each other if needed.


Product Specifications:

Product Group E10 Base Mini Bulb Sockets
Material Metal
Size Diameter: 10 mm, Height: 20 mm, Leg Distance: 9-11 mm
Cautions and Warnings Not recommended for beginners or young students due to its delicate and complex design.

Get your hands on this small footprint lamp base for circuit boards today!


Similar Products

  • Miniature Lamp Holder (E10B30)
  • Metal Lamp Stand With Screw Holder
  • Compact Lamp Base (E10B31)
  • Metal Lamp Holder with Spring Contacts
  • Miniature Lamp Stand with Snap-in Base

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

Perfect for:

  • Circuit board manufacturers
  • Breadboard enthusiasts
  • Craft workers

Key Features:

  • Small footprint design
  • High heat resistance
  • Simple and durable construction
  • Mountable on circuit boards and breadboards

The E10B29 Lamp Base is a small and durable lamp holder designed for installation on circuit boards and breadboards. It features two contact pins that can be inserted and soldered. Its small footprint design makes it ideal for use in tight spaces. The lamp base has high heat resistance and is made with simple and durable construction. It can be easily mounted on circuit boards and breadboards. However, it is not recommended for beginners or young students due to its delicate and complex design. The E10B29 lamp base is compatible with all miniature light bulbs on our website.

SKU: E10B29
Lamp Holder - Miniature Metal Lamp Stand (E10B31)

E10 (Edison 10-mm Screw Base) Lamp Holder


Looking for a simple and affordable metal lamp holder for your educational or craft projects? Look no further than the E10 (Edison 10-mm Screw Base) Lamp Holder. This miniature metal lamp stand holder is perfect for creating multi-lamp circuits in series or parallel arrangements, and its small footprint makes it easy to mount with just two screw holes.


Key Features

  • Easy to mount with two screw holes
  • Can be used for making multi-lamp circuits in a series or parallel arrangements
  • Super low cost and small footprint

Product Specifications:

Base Type E10 (Edison 10-mm screw base)
Design Simple metal lampholder
Mounting Two screw holes
Packaging Sold in packs of 10, 100, and 1000
Also Known As Mini Cleat Lampholder, Mini Cleat Receptacle, and Lamp Base

Perfect for:

  • Teachers and educators looking for a simple and low-cost lighting solution for educational projects
  • Craft enthusiasts who need a miniature lamp holder for their DIY projects
  • Electronics hobbyists who want to create multi-lamp circuits in a series or parallel arrangement

Caution: This product contains small parts and should be kept out of reach of children. Use caution when mounting and handling. Always turn off power before installing or replacing lamps.


Similar Products

  • E11 Socket
  • E12 Socket
  • E14 Socket
  • E17 Socket
  • E26 Socket

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.
SKU: E10B31
Lamp Holder, Black Color (Miniature Base, Bulb Socket) (MINIBASEB)

Miniature Light Bulb Socket or Lamp Holder


Miniature light bulb base for science projects and electronic ideas. This lamp holder is available in black color and holds our 1.2-volt, 2.25-volt, and 5.1-volt light bulbs. It features a rolled shell of nickel-plated brass mounted on a base with two screw terminals and two pre-drilled holes to mount to a project board. The base diameter is 30mm and the height is 18mm.


Key Features

  • Available in black or white
  • Features rolled shell of nickel-plated brass
  • Two screw terminals and two pre-drilled holes to mount to a project board
  • Holds our 1.2-volt, 2.25-volt, and 5.1-volt light bulbs
  • Base diameter is 30mm and height is 18mm

Product Specifications

Material Nickel-Plated Brass
Base Diameter 30mm
Height 18mm
Holds Light Bulbs 1.2-volt, 2.25-volt, and 5.1-volt

Similar Products

  • E10 Lamp Socket
  • E11 Lamp Socket
  • E12 Lamp Socket
  • E14 Lamp Socket
  • E26 Lamp Socket

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

CAUTION: This product contains small parts and should be kept away from children under 3 years old.

Perfect for:

  • Science enthusiasts and hobbyists
  • Electronic DIYers
  • Students working on science projects
  • Teachers looking for a reliable light bulb base for classroom experiments
  • Small business owners creating electronic prototypes
  • Anyone in need of a miniature light bulb socket for their project

SKU: MINIBASEB
Lamp Holder, Lamp Base, Elevated (E10B21)

This is a widely used lamp base for any E10 miniature light bulb with rated voltage of up to 24 Volts.  E10 miniature light bulbs have a screw base with diameter of 10 millimetres.  This lampholder may be installed on cardboard, wood, plastics and metal surfaces.
The screw base in E10B21 lamp bases are elevated to prevent short circuit when installed on metal surfaces and keeps away the heat when mounted on cardboard or light wood surfaces. If you intend to install the lamp holder under the hood of a car or inside a metal cabinet, then E10B21 lamp bases may be your best choice.

The legs have screw holes used for easy mounting while they are also the negative contacts of the lamp base. Another smaller contact between the two legs is used to connect the positive wire.

This lamp holder matches all of our miniature lamps. 
E10B21 lamp base is for low voltage applications. It is not recommended for applications that require more than 24 Volts.
Also known as lamp base, lamp stand, Mini Cleat Lampholder, Mini Cleat Receptacle, and Lamp Base.

Wholesale only. Not sold individually. 

Bulk pricing or discounted prices are available for quantities of 10 or more sets.

SKU: E10B21
Lamp Holder, White Color (Miniature Base, Bulb Socket) (MINIBASEW)

Standard Lamp Socket


The Standard Lamp Socket is a versatile miniature lampholder designed for various electronics ideas and science projects. This lampholder features a rolled shell of nickel-plated brass mounted on a base with two screw terminals and two pre-drilled holes for easy mounting on a project board. It is compatible with our 1.2V, 2.25V, and 5.1V light bulbs.


Key Features:

  • Versatile miniature lampholder
  • Available in Black or White
  • Nickel-plated brass shell for durability
  • Two screw terminals for easy wiring
  • Suitable for 1.2V, 2.25V, and 5.1V light bulbs

Product Specifications:

  • Base Diameter: 30mm
  • Height: 18mm
  • Screw Diameter: 10mm

Also known as Mini Cleat Lampholder, Mini Cleat Receptacle, and Lamp Base.

Orders of 10 packs and more receive bulk pricing discounts.


Perfect for Electronics enthusiasts, Science project enthusiasts, DIY electronics projects, Educational projects, Electrical engineers and hobbyists.
SKU: MINIBASEW
DBS002 Lever Support - Precision Balance and Lever Educational Tool
Lever Support (Balance Support) (DBS002)

DBS002 Lever Support (Balance Support)


Sturdy, precise, lightweight, cast-metal, educational.


Key Features

  • Lightweight cast metal for durability and portability
  • Precision-machined slots for knife-edge lever clamp
  • Milled bottom for flatness and stability
  • Single piece structure, 18.5 cm tall
  • Useful in studying balance, lever principles, and moment of force

Product Specifications

Material Lightweight cast metal
Height 18.5 cm
Base Stability Milled bottom for flatness
Precision Precision-machined slots for clamp
Dimensions 7"x3"x3"
Application Meter stick demonstrations, torque experiments

Similar Products

  • Cast metal physics lever
  • Precision educational balance
  • Compact demonstrator support
  • Sturdy meter stick base
  • Educational torque support

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.
Perfect for physics educators, students and learners, science labs and classrooms, educational institutions, and hobbyists interested in physics.
SKU: DBS002
Linkable Battery Holder 1AA With Binding Posts (PBH1AA3F)

Linkable Battery Holder 1 AA with Binding Posts


The Linkable Battery Holder 1 AA with Binding Posts is a convenient and versatile accessory for your electronic projects. With its binding posts, it allows for easy connection to your circuit, while its linkable design enables you to connect multiple holders together for increased battery capacity. This holder is designed to hold one AA battery and is made of durable materials to ensure long-lasting use. Whether you're a hobbyist or a professional, the Linkable Battery Holder 1 AA with Binding Posts is a great addition to your toolkit.


Product Specifications:

Product Name Linkable Battery Holder 1 Aa With Binding Posts
Battery Type AA
Number of Batteries 1
Binding Type Posts

Target Group:

  • Electronic hobbyists
  • DIY enthusiasts
  • Engineers
  • Students
  • Small business owners
  • Manufacturers

SKU: PBH1AA3F
SUPPORT RINGS, EXTENSION (PLAIN EXTENSION RINGS)
Support Rings, Extension (Plain Extension Rings) (2042)

Support Rings, Extension (Plain Extension Rings)


The Support Rings, Extension (Plain Extension Rings)is a versatile and durable tool that is perfect for use with clamp holders. Made of zinc plated steel wire with a diameter of 8mm (5/16in), and with a shank about 30cm (12in) long, this support ring extension is designed to provide reliable support for a wide range of laboratory equipment. Perfect for use with clamp holders. This extension support ring is an essential tool for any laboratory looking for a reliable and durable solution for their equipment support needs.


Product Specifications:

Product NameSupport Rings, Extension (Plain Extension Rings)
MaterialZinc Plated Steel Wire
Wire Diameter8mm (5/16in)
Shank Length30cm (12in)
CompatibilityFor use with clamp holders

Perfect For:

  • Science teachers
  • Lab technicians
  • Chemistry students
  • Research and development professionals
  • Industrial engineers
  • Manufacturing companies

SKU: 2042
Test Tube Holder, Wire Form With Finger Grip (TTHWIRE)

Wire Form Test Tube Holder with Finger Grip


The Wire Form Test Tube Holder with Finger Grip is a must-have tool for any laboratory. This holder is perfect for securely holding test tubes during experiments and procedures. Its unique wire form design with finger grip allows for easy and comfortable handling, minimizing the risk of dropping or spilling the test tubes. Made with high-quality materials, this test tube holder is durable and long-lasting. Whether you're a professional scientist or a student, the Wire Form Test Tube Holder with Finger Grip is an essential tool for any laboratory.


Product Specifications:

Product Name Test Tube Holder
Material Wire Form
Type Finger Grip Holder
Compatibility Test Tubes

Note: These are similar products, and each product is different, so research is required to find the best fit for your needs.

CAUTION: This test tube holder is made of wire and may have sharp edges. Handle with care to avoid injury.

Perfect for:

  • Laboratory technicians
  • Science students
  • Research scientists
  • Medical professionals
  • Chemistry enthusiasts
  • Biologists

SKU: TTHWIRE
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