# Engineering kit 4m 4M Green Science Water Pump — solar-powered water pump model for ages 5+ (blue/grey/white)

**URL:** https://aio.lv/en/product--4m-3425--3679555
**Data updated:** 2026-03-07 11:09 (EET)
**Category:** Board Games
**Manufacturer:** 4m
**Manufacturer code:** 3425
**EAN:** 4893156034250
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 21.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--4m-3425--3679555

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

4M Green Science Water Pump is an educational engineering kit that builds a working solar-powered water pump. Intended for children aged 5 and up, the kit includes colored components (blue, grey, white) and simple assembly parts to demonstrate solar energy conversion and fluid movement. It’s suitable for classroom demonstrations, STEM learning, hands-on experiments, and introducing renewable energy concepts.

## Long description

The 4m 4M Green Science Water Pump is an educational engineering kit that assembles into a working solar-powered water pump model. Designed for children aged 5 and older, the kit contains color-coded parts in blue, grey and white plus simple connectors and a small solar panel or battery interface to demonstrate how sunlight or a battery can be converted into mechanical motion to move water. The model shows basic principles of energy conversion and fluid movement in a compact, hands-on format suitable for individual play or classroom use.
Advantages
The kit offers a clear, age-appropriate introduction to solar energy and mechanical systems through step-by-step assembly. Components are color-coded for easier identification and safe for young builders, helping develop fine motor skills and basic engineering understanding. The assembled pump provides a visible demonstration of converting solar or battery power into rotational motion that drives water flow, supporting experiential learning in STEM subjects without requiring advanced tools or electronics knowledge.
Suitable for
Early STEM education and classroom demonstrations
Hands-on experiments about solar energy and fluid dynamics
At-home learning projects and supervised play for ages 5+
Science fairs and group activities introducing renewable energy concepts
Key specifications
Intended age: 5 years and older
Power source: solar panel or battery adapter (included in kit)
Model type: small-scale water pump demonstration
Materials: plastic components in blue, grey and white
Assembly: snap-fit parts and simple connectors for tool-free construction
How to use
Assemble the kit by following the illustrated instructions: fit color-coded parts together, attach the motor assembly and solar panel or battery connector, and position the pump in a shallow container of water. Place the solar panel in sunlight or insert batteries to power the motor; the rotating mechanism will draw and expel small amounts of water, demonstrating pump action. Adult supervision is recommended during the first assembly and when using batteries or water to ensure safe handling and correct connections.
Usage recommendations
Use the pump on a flat, stable surface and test it in a shallow tray to prevent splashing. For reliable solar operation, orient the panel toward direct sunlight; for indoor demonstrations, use the battery adapter following the polarity markings. After use, drain water from the model and allow parts to dry before storage to avoid damage. Keep small parts away from children under recommended age and replace batteries when performance drops.

## Specifications

| Feature | Value |
|---|---|
| Battery type | AAA |
| Power source | Solar energy |
| Product colour | White, Grey, Blue |
| Package depth | 60 mm |
| Package height | 275 mm |
| Package width | 205 mm |
| Manual | Yes |
| Package type | Box |
| Battery voltage | 1.5 V |
| Product type | Engineering kit |
| Theme | Engineering |
| Adult assistance recommended | Yes |
| Suggested gender | Boy |
| Batteries required | Yes |
| Recommended age (min) | 5 yr(s) |
| EU TSD warning | Small parts. Choking hazard, Not for children under 36 months |
| Learning approach | STEAM |
| Learning subjects | Science, Robotics |

## FAQ

### How much does the 4M Green Science Water Pump engineering kit cost, and is it available for purchase?

The price is 25.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All 4m products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized 4m service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for 4M Green Science Water Pump engineering kit?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3679555/54076358_large.webp