Most built-in hardware controls have a "floor"—a minimum brightness level that is often still too high for complete darkness. A software dimmer bypasses these hardware limits by placing a translucent "dark" layer over your screen, allowing you to dim the display down to near-total darkness. Key benefits include:
Windows has the widest variety of lightweight, free utilities for screen dimming. download dimmer
Lowers the intensity of light radiation that can cause headaches and digital eye fatigue. Most built-in hardware controls have a "floor"—a minimum
Many dimmers include blue light filters that help maintain your natural circadian rhythm. download dimmer