XP-E2 Positive or Negative??

[CRX]

The Chip Dimensions & Forward Voltages chart in this post will be helpful for future reference.

LEDs & Other Stuff - (Reference Guide)

Summarised here is information taken from different resources about LEDs, drivers, batteries, chargers & various other flashlight related stuff condensed as a useful guide with external links to more information. This post is very image heavy and may take some time to fully load…. [image] . Flashlight Basics(link is external) Flashlight Terminology(link is external) . LED Names Guide (Some common LED emitters used in flashlights) [image] . LED Size Comparison Guide (How the LE…