TH LED Matching & Sorting Accessory

摘要

This project is a spinoff from, and an accessory to, the magnificent Precision Adjustable Current Source published earlier this year [1]. The simple tool shown here can help to sort or select through-hole LEDs by visually comparing their color, brightness and/or radiation angle. Though they may all look identical in your storage box, LEDs can look completely different when lit, especially when mounted close to each other (like in an LED bar or panel). In the "early LED days" color and brightness differences occurred with LEDs from the same manufacturer, and sometimes even from the same type and production run.