Recently, LED giant Cree, Inc. has launched the Product Characterization Tool (PCT), an interactive LED design tool that simplifies the task of translating nominal LED performance to real-world conditions. The online tool, accessible via cree’s website, Cree notes PCT allows users to easily characterize any XLamp® LED over a wide range of operating conditions, including drive current, flux bin, price and junction temperature. It also calculates metrics such as lumen output, lumens per watt, lumens per dollar and more.