Introduction
This manual provides instructions for the installation, operation, and maintenance of your VELUX Blackout Blind, model DKL M08 1025S. Please read these instructions carefully before proceeding with installation or use to ensure proper function and longevity of the product.

Image: VELUX Blackout Blind installed in a roof window, providing shade to a room.
Setup and Installation
The VELUX Blackout Blind is designed for easy installation on VELUX roof windows. Before beginning, ensure you have the correct blind size for your window. The window type plate, located on the top right or left of the window sash when opened, contains crucial information about your window model.
1. Identify Your Window Model
Locate the type plate on your VELUX roof window. This plate provides the window type, size, and production code, which are essential for correct blind installation.

Image: A VELUX roof window type plate, illustrating where to find the window type and size information.
2. Installation Overview
Detailed installation instructions are typically provided with the product packaging. Generally, installation involves:
- Unpacking the blind and checking all components.
- Attaching the side rails to the window frame.
- Mounting the cassette at the top of the window.
- Ensuring the blind fabric runs smoothly within the side rails.
For specific step-by-step instructions, refer to the guide included in your product box or visit the official VELUX support website.
Operating the Blackout Blind
The VELUX Blackout Blind is designed for manual operation, allowing you to easily adjust the amount of light entering your room.
Adjusting the Blind Position
To operate the blind, grasp the control bar located at the bottom edge of the blind fabric. Gently slide the control bar up or down along the side rails to achieve the desired position. The blind will hold its position at any point along the rails.

Image: A hand demonstrating how to grasp the control bar to adjust the blind's position.

Image: The VELUX blackout blind partially closed, illustrating its ability to block light.
Ensure smooth and even movement to prevent damage to the fabric or side rails.
Maintenance and Care
Regular cleaning and maintenance will help prolong the life and appearance of your VELUX Blackout Blind.
Cleaning the Fabric
- Dust Removal: Use a soft brush or a vacuum cleaner with a brush attachment on a low setting to remove dust and loose dirt from the fabric.
- Spot Cleaning: For stains, gently dab the affected area with a damp cloth using lukewarm water and a mild detergent. Avoid rubbing vigorously, as this may damage the fabric.
- Drying: Allow the blind to air dry completely in the open position before retracting it. Do not use harsh chemicals or abrasive cleaners.
Cleaning the Rails and Components
Wipe the side rails and control bar with a damp cloth to remove any dust or grime. Ensure that no debris obstructs the smooth movement of the blind within the rails.
Troubleshooting
If you encounter issues with your VELUX Blackout Blind, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Blind does not move smoothly. | Debris in side rails, bent rails, or fabric misalignment. | Clean side rails. Check for obstructions. Gently guide fabric back into alignment. |
| Blind does not stay in position. | Tension issue or worn components. | Ensure the blind is correctly installed. If the issue persists, contact VELUX support. |
| Light leakage around edges. | Incorrect installation or blind not fully extended. | Verify correct installation of side rails. Ensure blind is fully closed. |
If these solutions do not resolve the issue, please contact VELUX customer support.
Product Specifications
- Brand: VELUX
- Model Number: DKL M08 1025S _4197
- ASIN: B00BW1Z93E
- Product Type: Blackout Blind
- Material: Fabric (tissu)
- Color: Uni White - 1025S
- Recommended Room Type: Children's room
- Manufacturer: Velux
Warranty and Support
Warranty Information
Warranty terms and conditions for your VELUX Blackout Blind are typically provided with the product packaging or can be found on the official VELUX website. Please retain your proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or to inquire about spare parts, please contact VELUX customer service through their official website or the contact information provided in your product documentation.
Note: Always refer to the specific documentation included with your product for the most accurate and up-to-date information.







