The premium solar cable from Redstar24 has a cable cross-section of 4 mm² and is available in red and black. It consists of a copper conductor with a tin coating, which ensures excellent conductivity . This conductor is surrounded by a stable tin coating, which ensures both corrosion protection and a long service life. The polyolefin sheathing ensures excellent UV resistance and meets the mechanical strength requirements of EN 50618. The special insulation is characterized by high abrasion resistance at high temperatures and is flame-retardant and ozone-resistant. The TÜV type-tested solar cable from RedStar24, which is available in various lengths, was specially developed for use in photovoltaic power supply systems and can be used both indoors and outdoors. The cable is resistant to weathering, UV radiation, oils and chemicals. The high-quality solar cables from Redstar24 achieve maximum performance and efficiency of the solar systems, as they are durable, reliable and specially designed for use in photovoltaic systems .
Advantages
✅ Solar cable with TÜV certification
✅ Weather, UV and chemical resistant
✅ High-quality conductor
✅ Conformity with industry standards
Disadvantages
❌ No installation instructions are included.
The test
General information
We took a close look at and tested the product in a practical test. In the following, we take a closer look at the features and impressions. From the packaging, materials and quality to the range of functions and handling, the product is subjected to our test procedure.
To give you a quick overview, we work with a points system. The maximum achievable score per area is 100 points. The final overall score is calculated from the average of all tested features, taking into account the respective weighting. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product ratings, please click here.
The first impression
Packaging and contents
ℹ️ Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?
| Criterion | Remark | Score achieved* |
|---|---|---|
| Product protection | Carton is sturdy, product sufficiently protected | 100 points |
| Sustainability Packaging | Compact product packaging, no unnecessary packaging waste, but use of plastic | 80 points |
| Package contents & scope | Premium solar cable 4 mm² in black | 100 points |
| Instructions for use | Instructions are available, installation should be carried out by qualified personnel. | 100 points |
| Total | 95 points |
*The maximum score is 100 points
The solar cable from Redstar24 makes a very good impression at first glance. It is delivered in a classic shipping box , which is shrink-wrapped in plastic packaging for optimum product protection. The sturdy cardboard box offers sufficient protection during transportation, but the use of plastic film could be a point of criticism for some consumers. Inside the box, shipping paper has been inserted to protect the product so that it arrives safely and undamaged to the end consumer . The contents of the packaging are complete and in perfect condition.
The first time in your hand
Product processing and appearance
ℹ️ Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?
| Criterion | Remark | Score achieved* |
|---|---|---|
| Visual appearance | Attractive design | 100 points |
| Processing | Very high-quality workmanship without defects | 100 points |
| Stability | Robust and hard-wearing | 100 points |
| Sustainability of the product | Both the UV-resistant outer sheath and the high-performance insulation ensure a long service life for the solar cable and thus contribute to sustainability | 100 points |
| Miscellaneous | Clear markings indicating technical specifications | 100 points |
| Total | 100 points |
*The maximum score is 100 points
The solar cable from Redstar24 impresses with its high-quality workmanship. It is in perfect optical condition and has no defects whatsoever. The flexible design of the cable makes it easy to install and safe to lay, even with different bending radii. Clear cable markings are also printed on the cable, making it easier for installers and inspectors to quickly identify and use the cable correctly.
This is what our practical test showed
Does the manufacturer keep its advertising promises?
ℹ️ Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.
| Criterion | Remark | Score achieved* |
|---|---|---|
| Flexibility | The solar cable from RedStar24 is very flexible and can be laid securely even at different angles. This makes installation much easier. | 100 points |
| Insulation | The white insulation is made of halogen-free polyolefin and protects against electrical interference and mechanical stress. | 100 points |
| Conductivity | The fundamental element consists of class 5 copper (DSTUEN60228). This is electrolytically tinned copper, which is known for its excellent conductivity and durability. | 100 points |
| Labeling | The printed specifications provide quick identification and make it easier for installers and inspectors to use the cable correctly. | 100 points |
| Standards and certification | The solar cable from Redstar24 is certified in accordance with IEC 60332-1-2 and EN 50525-1 and complies with the standards: EN50618, DSTUEN50618, DSTUIEC60332-1-2, DSTUEN60228, DSTUEN60811, DSTU4809 | 100 points |
| Variants | 2 different colors | 90 points |
| Total | 98 points |
*The maximum score is 100 points
The high-quality solar cable from RedStar24 has been extensively tested and has impressed in all areas. It has a length of 30 meters and is undamaged. The cable is flexible and bendable, making it easy to install in various situations without compromising performance. It is suitable for both above-ground and underground installations and offers protection against UV radiation as well as resisting moisture and pressure loads. With operating temperatures from -40 °C to +90 °C , it meets all requirements for solar installations. The insulation made of halogen-free polyolefin counteracts electrical interference and the outer sheath made of cross-linked polyolefin ensures UV resistance. The cable is made of copper electrolytically coated with tin . It ensures efficient transmission of electricity. In practical tests, the RedStar24 solar cable met all expectations and is a reliable, high-quality product for solar power supply systems.
Price/performance ratio
and ratings from consumers
ℹ️ Finally, we examine how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also look at the consumer reviews and check whether the critical and positive reviews are actually justified.
| Criterion | Remark | Score achieved* |
|---|---|---|
| Price / performance ratio | Very good performance in the mid-price segment | 80 points |
| Rating cut | 4.8 out of 5.0 on Amazon | 90 points |
| Total | 85 points |
*The maximum score is 100 points
On the Amazon platform, consumers rate the product with an average of 4.8 stars. Many customers like the quality of the solar cable and the fast delivery. Overall, there are mainly positive reviews from customers.
Prices of up to €34 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €10. The 4 mm² solar cable from Redstar24 is therefore currently in the mid-price segment with a price of €17.90 for a length of 10 meters. The price-performance ratio is very good for the quality and performance received.
Overall result
| Weighting | Score achieved* | |
|---|---|---|
| 1. packaging & contents | 20% | 95 points |
| 2. product processing & appearance | 20% | 100 points |
| 3. in the practical test | 45% | 98 points |
| 4. price/performance & consumer ratings | 15% | 85 points |
| Total | 96 points |
The premium solar cable 4 mm² of the brand Redstar24 was rated with an overall score of 1.2 and thus successfully qualified for our test seal. The test was carried out in the test period 01/24 and is stored in our database under the license number 240119001 . Further information on our test procedure can be found at www.pruefengel.de/testverfahren.
Test result:
1,2
