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Colorful plastic electronics kit with snap-together circuit components in rectangular box

STEM Circuit Kit XWJ01 32PCS 150+ Projects Stem Toy

SKU CH-9RG0-49E7C MPN XWJ01

A 32-piece electronics kit enables over 150 hands-on circuit projects for ages seven and up

  • Battery runtimeNo
  • Suggested age7
  • Spec summaryAssembly of multiple accessories, Plastic, 16 L x 11 W x 3 H
  • Measurements14.33 in W × 12.83 in H × 9.06 in D
  • Age groupAdult
  • Key featuresAssembly of multiple accessories
  • 32 components enable 150-plus hands-on projects
  • Low-voltage DC power keeps experiments child-safe
  • Step-by-step guide explains current, voltage, resistance
  • Smooth rounded plastic edges prevent injury during play
  • Open-ended design encourages original circuit inventions

Hands-on electronics kit

The STEM Circuit Kit XWJ01 contains 32 plastic components that snap together to build over 150 different projects. It is designed for children aged seven and up who want to explore basic electricity concepts at home or in the classroom. No soldering or tools are required, so young learners can start experimenting immediately.

Low-voltage safe operation

The kit runs on a low-voltage DC supply housed in a durable plastic base measuring 14.33in W x 12.83in H x 9.06in D. All parts feature smooth, rounded edges and non-toxic materials for safe handling during extended play. There are no fans, pumps or high-current components that generate noticeable heat or noise.

150-plus guided projects

The included manual provides step-by-step instructions for 150-plus builds covering lights, motors, sound and music circuits. Buyers who need advanced programming, microcontroller integration or wireless connectivity will not find those features in this set.

How it compares

Measured against everything we stock in STEM Kits & Building Blocks, at today’s prices. Recalculated every night.

Price $61.99
Pricier than about 80% of the 236 comparable items (median $28.99).

Specifications

Product
Brand nameGENERIC
Model nameXWJ01
Part numberPUWJ-01
Power
Battery runtimeNo
Size & build
Measurements14.33 in W × 12.83 in H × 9.06 in D
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
More details
Age groupAdult
Suggested age7

Questions about this item

How do the 32 snap-together pieces connect to build the first circuit?

Align each component's metal snaps with the base grid and press firmly until they click; the step most missed is snapping the battery holder in last so polarity matches the project diagram.

Which parts of the XWJ01 kit wear out first and need replacing?

The AA batteries that power the low-voltage DC supply drain with use; the 32 plastic snap components and connecting wires are reusable and do not degrade under normal play.

What limits how long a motor or LED project can run continuously?

Battery capacity is the first limit — fresh AA cells typically sustain a spinning motor or glowing LED for a few hours before voltage drops too low for the circuit to operate.

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