Single-digit 7-segment thru-hole displays are the workhorse choice for counters, timers, thermometers, and appliance status readouts where one numeric field is needed. QUEENDOM 1-digit modules come in red, green, amber, and blue with common-anode or common-cathode configurations, and digit heights from 7 mm (compact instruments) to 25 mm (panel meters read at arm’s length).All dies inside are intensity- and wavelength-binned so segment brightness stays matched across production lots — essential for clean digit rendering. Standard 0.1 in (2.54 mm) pin pitch drops directly into prototyping boards and production sockets. The low-profile epoxy packages support wave soldering at 260 °C for 5 seconds. Request current bin codes and photometric test data through the DIP datasheet center, or compare multi-digit options in the related 2-, 3-, and 4-digit series.