FlickerSpec vs 100 Lights

Your new LEDs shouldn't be giving you headaches. If they are, the lights are almost certainly flickering — faster than your eyes can consciously detect, but fast enough to trigger migraines, eye strain, and fatigue. FlickerSpec turns your iPhone into a flicker meter, using the 240fps camera to measure exactly what your eyes can't. For documentation — clinical engineering, facility management, lighting audits — FlickerSpec generates PDF reports that record the IEEE 1789 result and IEC PstLM value together with the standard, threshold, measurement uncertainty and calibration reference behind them. FlickerSpec is a screening and documentation aid, not an accredited laboratory instrument; whether a report satisfies a particular surveyor or regulator is their determination. WHAT YOU MEASURE Quick Measurement (Free, unlimited) Live 240fps capture with real-time results: • Dominant flicker frequency in Hz • Percent Flicker and Flicker Index per IEEE 1789-2015 • Signal-to-noise ratio and confidence rating • Live luminance waveform and FFT spectrum • No daily limit — measure as many fixtures as you like IEEE 1789 Verdicts (Pro) Turn raw numbers into a documented decision: • IEEE 1789-2015 verdict against the published low-risk practice: PASS, FAIL, or Can't confirm when the capture or framing cannot support a pass • Custom pass/fail thresholds when your specification differs • The standard and threshold applied are recorded with every saved measurement 3-Minute PstLM Measurement (Pro) 3-minute tripod capture for documenting low-frequency flicker: • Short-Term Flicker Severity (PstLM) per IEC TR 61547-1:2015, for dominant frequencies up to 90 Hz • Compared against the PstLM ≤ 1.0 limit cited by EU Ecodesign 2019/2020 (PstLM only — Ecodesign also requires SVM, beyond FlickerSpec's 240fps phone-camera pipeline) • 8× oversampled LM flickermeter checked against all 5 IEC Table A.1 test vectors • Camera-based measurement aid, not an accredited instrument or certified result Measurement Logging & PDF Reports (Pro) Every audit, documented: • Save measurements with GPS location, fixture photo, and notes • Single-measurement and session-summary PDF reports • PstLM threshold-comparison section included when applicable • Calibration certificate reference on every report • CSV export for spreadsheet workflows Calibration System (Free) Verify accuracy before any audit: • Built-in calibration web app generates a known-frequency reference signal • Point your iPhone at any screen showing the calibration page • Timestamped calibration certificate attached to all subsequent reports MEASUREMENT BANDWIDTH 240fps camera capture (Nyquist: 120 Hz) is designed for 50 Hz mains regions: • 50 Hz and 100 Hz flicker (50 Hz mains) — frequency and modulation depth • 60 Hz and 120 Hz flicker (60 Hz mains, e.g. North America) — the dominant frequency may still be identifiable, but depth and the verdict that depends on it are conditional because 240 fps is an exact multiple of both. The app reports Can't confirm when it cannot sample the whole cycle. • Above 120 Hz PWM and kHz drivers — outside camera bandwidth • Modulation depth is a lower bound unless the light fills the region of interest NO SUBSCRIPTIONS $49.99 one-time purchase unlocks everything: IEEE 1789 risk indications, 3-Minute PstLM Measurement, unlimited logging, PDF reports, CSV export, the calibration certificate document, report header customization with your company name and logo. Free tier: unlimited Quick Measurements with the full live readout — frequency, percent flicker, flicker index, SNR and confidence — plus free calibration. Privacy Policy: https://flickerspec.slick-engineering.workers.dev/privacy Terms of Use: https://flickerspec.slick-engineering.workers.dev/terms

Turn Your Phone Into The Ultimate Light Machine Discover a powerful collection of 100+ dynamic light effects designed for creativity, relaxation, fun, and everyday use. Whether you want to set the mood, entertain kids, signal for help, or simply enjoy mesmerizing visuals, 100 Lights transforms your device into an interactive light experience. From calming ambient glows to playful interactive effects, every light is crafted to be simple to use and visually stunning. Explore Different Ways to Light Up Your World Relaxing Lights Create a calming atmosphere with soothing visuals like fireflies, star fields, lava lamps, and meditation lights designed to help you unwind. Lights for Kids Fun and colorful effects like kaleidoscopes, spirals, balloons, and bubbles make 100 Lights playful and engaging for younger users. Interactive Lights Draw, play, and experiment with lights that respond to touch and motion including paint lights, magnetic lights, bubble pop, and more. Powerful Light Tools Practical lighting tools like glow sticks, Morse code signals, and animated effects help you communicate or stand out when you need attention. Designed for Simplicity 100 Lights is built to be intuitive and accessible for everyone. Choose a light, tap the screen, and instantly transform your device into a vibrant display of color and motion. Features 100+ unique light effects Relaxing ambient lights Interactive touch-based lights Fun lights designed for kids Utility and signaling tools Simple and easy-to-use interface Regular updates with new lights Whether you’re looking to relax, entertain, create, or experiment with light, 100 Lights brings a world of possibilities right to your screen. Download 100 Lights and experience light in a whole new way. Important Notice This app is designed for entertainment purposes only and should not be used as a professional lighting device. Some light effects may include flashing visuals that could affect photosensitive users. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/