Lunar

Lunar is a macOS-focused application designed to improve control over external monitors by intelligently adjusting brightness and other display settings. Instead of applying a software brightness overlay, it directly communicates with compatible displays using the DDC/CI hardware protocol, offering true hardware-level brightness adjustments when supported. Lunar doesn’t just adjust brightness. It intelligently adapts to environmental conditions by using external or built-in ambient light sensors and location-based cues like sunrise and sunset times. Users can fine-tune many aspects of their displays, including volume, contrast, screen orientation, and input switching, all through native macOS interfaces or customizable hotkeys. The tool also includes advanced features such as dimming below 0% for low-light conditions and blackout controls that power off screens without disrupting connected hardware.