About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out material, long-term or laboratory tests. Our aim is to provide honest feedback to help you make a purchasing decision. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product reviews, please click here.

RedStar24
Premium solar cable 6 mm²

The premium solar cable from Redstar24 has a cable cross-section of 6 mm² and is available in red and black. It consists of a tinned copper conductor, which ensures excellent conductivity and is surrounded by a robust tin-plating that guarantees corrosion protection and durability . The polyolefin protective sheath offers high UV resistance and mechanical strength in accordance with 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 also 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

TÜV-tested solar cable
✅ Weather, UV and chemical resistant
✅ High-quality conductor
✅ Conformity with industry standards

Disadvantages

❌ No instructions available for installation

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?

CriterionRemarkScore achieved*
Product protectionCarton is sturdy, product sufficiently protected100 points
Sustainability PackagingCompact product packaging, no unnecessary packaging waste, but use of plastic80 points
Package contents & scopePremium solar cable 6 mm² in black100 points
Instructions for useInstructions are available, installation should be carried out by qualified personnel.100 points
Total95 points
Weighting: 20%
*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 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?

CriterionRemarkScore achieved*
Visual appearanceHigh-quality and stable design. The flexible nature of the cable facilitates installation and enables versatile laying100 points
ProcessingVery high-quality workmanship without defects100 points
StabilityRobust and hard-wearing100 points
Sustainability of the productBoth the UV-resistant outer sheath and the high-performance insulation ensure a long service life for the solar cable and thus contribute to sustainability100 points
OtherClear markings indicating technical specifications100 points
Total100 points
Weighting: 20%
*The maximum score is 100 points
Redstar24 solar cable unboxing

The solar cable from Redstar24 impresses with its high-quality workmanship. It is in perfect optical condition and has no defects. 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 easy for installers and inspectors to identify the cable quickly and use it 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.

CriterionRemarkScore achieved*
FlexibilityThe solar cable from RedStar24 is very flexible and can be laid securely even at different angles. This makes installation much easier.100 points
InsulationThe white insulation is made of halogen-free polyolefin and protects against electrical interference and mechanical stress.100 points
ConductivityThe fundamental element consists of class 5 copper (DSTUEN60228). This is electrolytically tinned copper, which is known for its excellent conductivity and durability.100 points
LabelingThe printed specifications provide quick identification and make it easier for installers and inspectors to use the cable correctly.100 points
Standards and certificationThe 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, DSTU4809100 points
Total100 points
Weighting: 45%
*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.

CriterionRemarkScore achieved*
Price / performance ratioVery good performance in the lowest price segment100 points
Rating cut4.8 out of 5.0 on Amazon 90 points
Total 95 points
Weighting: 15%
*The maximum score is 100 points

On the Amazon platform, consumers rate the product with an average of 4.8 stars. Some customers complain that the cable is not flexible enough or that the packaging arrived damaged. 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 €88.99 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €49. The solar cable from Redstar24 is therefore currently in the lower price segment with a price of €49. For the quality and performance received, the price-performance ratio is very good.

Overall result

WeightingScore achieved*
1. packaging & contents20%95 points
2. product processing & appearance20%100 points
3. in the practical test45%100 points
4. price/performance & consumer ratings15%95 points
Total98 points
*The maximum score is 100 points
Premium solar cable 6 mm²
of the brand
RedStar24
achieved
98
Points in our test and therefore passed. The test was carried out in the test period
11/23
and is stored in our database under the licence number
231115013
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observation and do not include long-term or laboratory tests. The test ratings reflect the opinion of our experts and are based on careful analysis. We would like to emphasize that these evaluations do not claim to be exhaustive and reflect both subjective and objective impressions. The assessments are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a reputable and thorough testing process, which has been developed in a long and professional process in close cooperation with our experts.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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Our product evaluations are carried out exclusively through direct, on-site tests. This ensures a detailed and specific examination of the product properties. You can find more information about the test procedure here.

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