Dimming Curve Calculator
Visualize LED dimming response curves and compare different protocols
1Dimming Configuration
Digital control with high frequency switching, best for flicker-free dimming
Advanced Settings
2Dimming Output
21.8%
Actual Light Output
218 lumens
Input Signal
50%
Perceived Brightness
~50%
Dimming Response Curve
Protocol Specs: PWM
Understanding LED Dimming Curves
LED dimming curves define the relationship between the dimmer control signal and actual light output. The human eye perceives brightness logarithmically, so a linear dimming curve can feel unnatural - the light appears to change quickly at low levels and slowly at high levels. Proper curve selection ensures smooth, natural-feeling brightness transitions.
Choosing the Right Curve
Logarithmic curves match human perception best, making 50% input feel like 50% brightness. Linear curves are simpler but can feel abrupt at low levels. S-curves provide extra-smooth transitions at both ends of the range. The square law curve offers a compromise between linear and logarithmic.
Dimming Best Practices
- •Use logarithmic or S-curve for residential and hospitality lighting where smooth transitions matter
- •TRIAC dimmers may cause flicker with incompatible LED drivers - check compatibility lists
- •PWM dimming at frequencies above 25kHz eliminates visible flicker for video applications
- •DALI systems allow custom curves and scene programming for maximum flexibility