It powers the circuits and is also used for testing purposes. They can be operated individually. The module is facilitated with a switch to manually turn on/off the module while connected to the power source.
eBay
STEM 13-in-1 Education Solar Robot Toys DIY Building Science Experiment Kit for Kids Age 8-12 Solar Powered By Sun Robot Kits
Aliexpress UK
eBay
Wind Energy Powered Beast Robot Science And Educatio Puzzle Assembly Creative Mechanical DIY Kit Child Education Toy
Aliexpress UK
eBay
Solar-Powered Car Model Kit - Children's Educational Toy Science Experiment Playset Assemble Your Own Sun-Fueled Vehicle
Aliexpress UK
Plus, we included 140 jumper wires specifically made for breadboard, and a pair of banana-pin wires for power output. Accessories – This kit includes 140 jumper wires specifically made for breadboard, and a pair of banana-pin wires for power output.
eBay
10Pcs Magic Flying Butterfly Wind Up Toy In The Sky Funny Rubber Band Powered Cards Kids Tricks Props Party Great Surpris Gift
Aliexpress UK
The module can produce dual 3.3V or 5V and can be connected directly to the breadboard included. Can be powered using the USB input or 2.1mm socket. LED power indicator. Two sets of output pins. Maximum output current: 700mA.
eBay
25pcs Popper Refill Balls 2.8cm Soft Foam Ball Bullet for Air Powered Children Blasting Series Pet Toy Ball Toys Gun Accessories
Aliexpress UK
With its convenient features and stable power output, this module is an essential component for your electronic prototyping needs. Power Rails: 0V, 3.3V, 5V on Breadboard. 1 X 9V Battery Clip Power Cable.
eBay
Wind Powered Gyro Decompression Toy Colorful Wind Blown Gyro Fidget Adult Desk Top Stress Relief Toys For Birthday Xmas Gift
Aliexpress UK
9V Battery Clip Power Cable 2.1x 5.5mm Male DC Jack Plug. Dissipation Power.
eBay
Lighting Kit for 21357 Pixar Lamp - Touch Control 3 Colors & Dimmable LEDs USB Powered Light Set （Not including Model Bricks）
Aliexpress UK
The 1502PBB Breadboard Power Supply Kit with DC +15V and -15V output is a high-quality product designed for Arduino Starter projects. Branded in the United Kingdom, this kit provides a reliable power source for breadboarding and testing electronic circuits. Ideal for professionals and hobbyists alike, the kit includes everything needed to supply power to your breadboard with both positive and negative voltage options. Perfect for welding, soldering, and various metalworking and manufacturing projects, this power supply kit is a versatile and essential tool for any workshop or laboratory.
eBay
Low Temperature Stirling Engine Model Kit, Educational Science Toy Powered by Heat Steam for DIY Projects
Aliexpress UK