SHADOW Light Gray ST78 Smart Skylight: China Suppliers’ Factory with Nine Controlled Zones for Shading & Transparency
| Product Model | ST78 | ST75 | ST70 |
|---|---|---|---|
| Color | Gray | Gray | White |
| Thickness | 11mil | 11mil | 11mil |
| State Switching Response Time off-on (ms) |
<45 | <45 | <45 |
| State Switching Response Time on-off (ms) |
<200 | <200 | <200 |
| Working Voltage (on) | 12V | 12V | 12V |
| VLT (off) | 12% | 12% | 14% |
| VLT (on) | 88% | 88% | 86% |
| TSER | 78% | 75% | 70% |
| UV Rejection | 100% | 100% | 99% |
| IR Rejection | 95% | 92% | 82% |
| Viewing Angle | 150° | 140° | 130° |
| High Temperature Resistance | 120℃ | 100℃ | 80℃ |
| Substrate Material | Japan PET | Japan PET | South Korea PET |
| Built-in Features |
|
|
|
| Net Weight (kg) | 8 | 8 | 8 |
| Outer Box Dimensions (mm) | 1250×260×260 | 1250×260×260 | 1250×260×260 |
Frequently Asked Questions
What are the main differences between the ST78, ST75, and ST70 models?
The main differences lie in their color options, temperature resistance, substrate materials, and optical performance. ST78 and ST75 feature a gray color and utilize Japan PET substrate, offering higher heat resistance (up to 120°C and 100°C respectively) and superior IR/UV rejection. The ST70 is white, uses South Korea PET substrate, resists temperatures up to 80°C, and offers 99% UV and 82% IR rejection.
How fast do these smart films switch between states?
All three models (ST78, ST75, and ST70) feature exceptionally fast response times. They switch from the off (opaque) state to the on (transparent) state in less than 45 milliseconds, and return from on to off in less than 200 milliseconds.
What control methods are available for these smart films?
All models come standard with One-Touch Control Button and Intelligent Light Sensing Control. Additionally, the premium ST78 model supports Program and APP Control for advanced smart home integration.
What is the working voltage required for operation?
All three models operate on a safe working voltage of 12V when turned on, ensuring energy efficiency and safety during daily operations.
What are the VLT (Visible Light Transmittance) specifications?
When turned on (transparent), the ST78 and ST75 models achieve 88% VLT, while the ST70 reaches 86% VLT. In their off (opaque) state, the ST78 and ST75 have a VLT of 12%, and the ST70 has a VLT of 14%.
What are the dimensions and weight of the packaged products?
All models have a net weight of 8 kg and are packaged in outer boxes with standard dimensions of 1250 mm × 260 mm × 260 mm.
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