HOW TO JUDGE THE SMARTFILM QUALITY GOOD OR NOT

More and more customers rely on transmittance to judge whether the quality of the smartfilm is good enough. In fact, transmittance is only a small reference data in testing whether the quality of the smartfilm is good enough. We should comprehensively judge whether the smartfilm products we use are reliable, whether they will win the trust of our customers, and whether they can have a long and stable life in more aspects.

The reliability of the quality of smartfilm can be judged from the following aspects:

1. Optical performance

- Transmittance: High-quality smartfilm should have a high transmittance (usually above 75%) in the transparent state, which can fully ensure the bright indoor light.

- Haze: In the opaque state, the haze of the smartfilm should be high to provide good privacy protection.

View angle, the larger the squint angle of the smartfilm, the better the visual effect will be, and it will look transparent at all angles.

- Color consistency: The color of the smartfilm should be consistent in any state, without any color difference or unevenness.

2. Electrical performance

- Turn-on voltage: The operating voltage of the dimming film should usually be between 48 and 65 volts to ensure user safety.

- Power consumption: High-quality smartfilm should have the characteristics of high efficiency and low power consumption, for example, the power consumption per square meter should not exceed 5 watts.

- Response speed: The switching time of high-quality smartfilm from transparent to opaque state is usually about 4 seconds.

3. Service life -

4. Durability: High-quality smartfilm should have a long service life and can withstand at least hundreds of thousands of switching operations without damage.

- Stability: It can still maintain stable performance under different environmental conditions (such as temperature and humidity), and the adaptability temperature range can be as wide as -20℃ to 90℃.

4. Uniformity and transparency

- Uniform thickness: The thickness of the smartfilm should be uniform to avoid inconsistent optical performance caused by uneven thickness.

- Transparency: When the smartfilm is in a transparent state, it should be as colorless and transparent as possible, without any obvious haze or yellowing.

5. Safety and environmental protection

- Environmentally friendly materials: Check whether it is made of non-toxic and harmless materials and whether it meets relevant environmental protection standards.

- Explosion-proof performance: High-quality smartfilm should be able to effectively prevent glass fragments from splashing when it is damaged, and have a certain explosion-proof function.

6. Production process and certification

- Production process: High-quality smartfilm should have strict production process control and quality inspection procedures to avoid production defects.

- Certification: Check whether the product has passed various authoritative certifications, such as ISO9001, CE, SGS ROHS, etc., which is an important basis for quality assurance.

7. User evaluation and case

- User evaluation: By checking customer feedback and evaluation, you can get a preliminary understanding of the actual use effect and satisfaction of the product.

- Successful cases: Various successful application cases are also an important basis for judging product quality. If the product is widely used in high-end projects, it is more reliable.

Test method

1. Visual inspection: Observe the surface of the smart film under natural light and artificial light to ensure that there are no obvious defects or uneven functions.

2. Electrical test: Use a power supply and an electric meter to test the smartfilm to check the working voltage, power consumption and response time.

3. Durability test: Through repeated switching operations, check whether the performance of the smartfilm is stable, whether there is performance degradation or failure.

4. Environmental adaptability test: Test the performance of the smartfilm under different temperature and humidity conditions to ensure its stability in various environments.

The above methods can effectively judge the quality and reliability of the smartfilm, so as to select high-quality products.