The lens mask from Esylux is a specialized accessory for motion detectors, designed for use in the ALVA BL 940/170 MD DALI bollard lights. This lens mask serves as a replacement part and enhances the functionality of the motion detectors by improving motion detection and increasing the efficiency of lighting systems. With a height of 16 millimeters, the lens mask is precisely tailored to the specific requirements of the bollard lights. Made in Germany, this product ensures high quality and reliability. The delivery includes one piece of the lens mask, which is easy to install and provides a durable solution for building security. The use of this lens mask is particularly beneficial for ensuring effective monitoring and lighting in various environments.