The Crestron CLW-LSWEX-1GD-W-T is a single-channel, wireless lamp switch module designed for retrofitting or adding automated control to standard line-voltage lighting fixtures without running control wiring. It is part of Crestron's wireless lighting control ecosystem, allowing standalone operation or integration into a larger Crestron home or building automation system. The module wirelessly receives commands from Crestron keypads, touchscreens, or sensors and uses an internal relay to switch the connected light fixture on or off. Its primary application is in renovation projects or locations where installing new switch wires is impractical or cost-prohibitive, enabling smart lighting control with minimal installation effort.

The switch is designed for discreet installation inside or near the light fixture, typically within the ceiling canopy or electrical junction box. It features a white finish (denoted by "W" in the model) to blend with typical interiors. The "T" indicates it includes a temperature sensor, allowing it to monitor ambient temperature and report this data wirelessly for integration into climate or energy management strategies. Communication occurs over a secure, license-free RF band. Configuration and pairing with controllers are performed using Crestron software tools. This module provides a flexible and powerful solution for enabling automated lighting schedules, scenes, and sensor-based control in both residential and commercial environments.