This document introduces CTSC's series 448 0.2 watt linear motion composition slide controller features, including innovative AC power switches, 10-60mm slider travel, 0.2 watt power rating (resistor), 1000 watt power rating (SPST switch), 600 watt power rating (SPDT switch), 50% travel limit switch, multiple limit switches, single resistor or double resistor design, compact, economical, wide resistance range, and thin structure that allows stacking multiple units in a small space.