Pick-by-Light Module: PTF-4N-2
PTF-4N-2
170 mm x 50 mm
replaced by: PTF-4N-4
This standard Pick by Light compartment indicator with a four-digit numeric display has been used in various systems for many years to display larger picking quantities or container sizes. It should be noted that even the round LED eye-catcher light can either flash or display a single color statically. The compartment indicator is no longer used in newer Pick by Light systems.
In a standard process after order activation via a scanner, HOST system, or conveyor technology, the compartment indicators light up with the corresponding withdrawal quantities on the four-digit numeric display. The powerful LED signals the withdrawal from a long distance. The withdrawal itself is confirmed with the acknowledgment button. The +/- buttons can be used to correct shortfalls and perform inventory checks.
More information in the main article: Pick by Light & Pick-to-Light System in 2025
Various individual functions can be triggered using the function button. The information displayed and the sequence of events on the compartment display are LUCA-Server by the LUCA-Server and can be customized.
Why different system names?
pick-by-light
The pick-by-light method is a classic picking method that uses compartment displays. The pick-by-light display shows the quantity to be picked directly at the storage compartment. The pick-by-light system usually receives confirmation of the pick by pressing a button on the module.
pick-to-light
The term is often used in English-speaking countries instead of pick-by-light. The pick-to-light method is a Multi-Order-Picking that focuses on distributing items that have just been picked to different orders. The method is typically used with a picking cart (Pick-by-Cart).
put-to-light
The put-to-light method clearly defines the distribution of goods to the target compartments. A classic example of this is replenishment in a flow rack.
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