great for both home and office use, these light dimming stickers offer a practical solution for controlling the light emitted from electronic devices. The self-adhesive design makes them easy to apply and remove, while their adjustable size ensures they can be tailored to fit any device. Enjoy a more serene and light-controlled space with these versatile stickers. Features -Color:Black -Material:PVC adhesive -Size:20.70X11.00X0.10cm/8.14X4.32X0.04in -Light blocking capability: ensures effective blocking of led light, promoting a better sleep environment by minimizing light pollution -Adjustable brightness: offers the ability to adjust the brightness of led lights, making it suitable for different scenarios -Easy to apply: the sticker design allows for easy and quick installation, leaving no glue behind -Wide range of uses: suitable for various led light devices, including routers and electronic appliances, enhancing their usability -great and reliable: made from great materials, these stickers are built to last, ensuring longterm performance Package list: 30 x sheets of blackout stickers