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Twilight switch - 7LQ2 series
These dusk switches are great for reducing overall operating costs. They can provide lighting for paths, shop windows or any other demand-oriented lighting installation. These devices use light sensors to measure the amount of daylight. Depending on the desired brightness, they will switch on automatically, and feature switching hysteresis and time delay mechanisms in order to prevent clockwork behaviors.
All sensors need is to be mounted to prevent them from being unduly influenced by lighting feedback. The 7LQ2 103 and 7LQ2 101 models feature two independently set switching channels. A light sensor is needed for this to occur. Light sensors can be switched parallel to the 12 dusk switches. Multiple light sensor installations are no longer needed because the dusk switches function independently of one another. They can be individually adjusted as well.