Flux Chip is an item for upgrading processing machines. It can have two values, energy and speed. Empty chips can only be traded with Flux Engineer for an upgrade.
Energy value is used to recalculate machine energy usage. The lower the percentage, the less energy is used.
Speed value determines how fast an item is processed. A higher percentage means faster processing. Speed also multiplies energy usage.
This is a page dedicated to Flux mods available on CurseForge: