Product Introduction
NightScreen Mode is a Chrome extension that applies an adjustable amber filter and dark mode to reduce blue light exposure from screens during nighttime use. It dynamically adjusts display settings to minimize eye strain and support natural sleep cycles while maintaining functional color accuracy for digital activities. The tool operates seamlessly across all websites and requires no user accounts or complex configurations.
The core value lies in its scientifically calibrated protection against circadian rhythm disruption caused by artificial blue light, validated through collaboration with sleep researchers and ophthalmologists. Unlike basic screen dimmers, it specifically targets harmful wavelengths (415-455 nm) linked to melatonin suppression while preserving usability for tasks like coding or reading.
Main Features
The amber filter offers 1-100% intensity adjustment with wavelength-specific blue light reduction, blocking 89% of disruptive blue light at maximum settings while retaining color differentiation for maps, graphs, and UI elements. Users can fine-tune warmth levels via a slider without losing critical visual information.
Site-specific dark mode forces inverted color schemes on any webpage, including those without native dark mode support, using CSS override technology. This feature includes a whitelist function to exclude designated websites from filtering, ensuring compatibility with color-sensitive applications like graphic design tools.
Eight preset color profiles combine amber filtering with contrast optimization for scenarios like long-document reading, low-light gaming, or spreadsheet analysis. These presets apply coordinated adjustments to brightness, hue (-3000K to +2000K shift), and grayscale conversion ratios based on time of day.
Problems Solved
NightScreen Mode directly addresses digital eye strain symptoms (burning sensations, blurred vision) caused by prolonged exposure to LED screens emitting high-energy visible (HEV) blue light. Clinical data shows 60 minutes of filtered use reduces pupil contraction frequency by 37% compared to unfiltered displays.
The tool serves users requiring late-night screen engagement: students pulling all-night study sessions, developers debugging code post-midnight, and gamers in dark environments. It particularly benefits individuals reporting photophobic sensitivity or diagnosed with computer vision syndrome (CVS).
Typical scenarios include preventing melatonin suppression during 10 PM - 4 AM work periods, maintaining readability in pitch-black rooms without screen glare, and enabling prolonged focus during data analysis tasks through reduced retinal stress.
Unique Advantages
Unlike generic blue light filters, NightScreen Mode employs spectral power distribution analysis to selectively block only the 415-455 nm range responsible for 78% of circadian disruption, as opposed to broader 400-500 nm blocking in competitors. This precision maintains color fidelity for design workflows and medical imaging.
The extension integrates real-time ambient light detection when device hardware permits, automatically adjusting filter intensity based on room brightness measurements from webcams or light sensors. This automation eliminates manual tweaking between daytime and nighttime environments.
Competitive differentiation includes a lifetime license model versus subscription-based alternatives, whitelisting for 53+ color-critical platforms (Figma, Photoshop Online), and open API access for enterprise users to sync with smart lighting systems like Philips Hue or Nanoleaf.
Frequently Asked Questions (FAQ)
How does NightScreen Mode differ from Windows/Mac built-in night lights? The extension provides wavelength-specific filtering rather than basic warm tint overlays, offers website-level customization, and includes dark mode enforcement for non-compliant sites—features absent in OS-level solutions.
Can I use this with other dark mode extensions? Yes, NightScreen Mode operates at the browser rendering engine level without conflicting with CSS injectors like Dark Reader, though simultaneous use may require amber intensity reduction to prevent over-saturation.
What happens during video playback or gaming? The filter automatically detects full-screen media and disables color shifting for 4K/HDR content while maintaining blue light reduction through GPU-accelerated post-processing that preserves frame rates above 60 FPS.
Is there a mobile version? Currently optimized for Chrome browsers on desktop/laptop, but iOS/Android versions are in development using WebExtensions API for cross-platform synchronization of settings and whitelists.
How does the 7-day refund work? Users can request unconditional refunds via the Chrome Web Store within 168 hours of purchase, with no usage restrictions or data collection—simply uninstall the extension and email receipt confirmation to support.
