Flicker Meter+ Light

Detect invisible LED flicker with your camera. Measure PWM frequency, flicker percentage, and visualize light modulation in real time.

Flicker Meter+ Light measures the invisible flicker of LED lights, screens, and other light sources using your iPhone camera. Detect harmful PWM flicker that can cause eye strain, headaches, and discomfort.

Simply point your camera at any light source and get an instant reading of the flicker frequency in Hz and the flicker percentage. The app visualizes the light modulation waveform in real time so you can see exactly how your lights behave.

Perfect for evaluating LED bulbs before purchase, checking office lighting quality, or diagnosing display refresh issues. Compare different light sources and find the ones that are safest for your eyes.

Designed for lighting professionals, health-conscious users, and anyone who wants to understand the hidden behavior of their lights. Clean interface with accurate, real-time measurements.