Guides & Articles

Practical guides on emergency lighting, colored light science, Morse code signaling, and getting the most out of every screen.

Creative Uses

25 Practical Uses for a Screen Flashlight

Try screen lighting for nearby reading, product photos, desk tasks, and backup light, with setups and limits for each use.

4 min read Read →
Colored Light

Colored Light: Screen Colors for Reading and Signaling

Choose screen colors for nearby reading, messages, and display checks, with brightness controls and practical limits.

3 min read Read →
Emergency

Emergency Lighting Preparation: Torches, Lanterns, and Phone Backup

Prepare and test emergency lights, keep batteries and chargers accessible, and use phone lighting while preserving communication.

3 min read Read →
How It Works

How Online Flashlights Work: Screen Color, Wake Lock, and Fullscreen

Learn how a browser flashlight uses your display, what wake lock and fullscreen do, and how to adjust hardware brightness.

3 min read Read →
Emergency

How to Conserve Phone Battery During a Power Outage

Conserve phone battery during an outage with short lighting sessions, usable brightness, and connections for calls and alerts.

3 min read Read →
Colored Light

Red Light and Night Vision: Using a Dim Screen

Set up dim red screen light for nearby tasks during stargazing or camping, with brightness and visibility limits.

3 min read Read →
Comparison

Screen Flashlight vs. LED Torch: Choosing a Light for the Task

Compare a screen flashlight and rear LED torch for nearby lighting, directional tasks, color control, and battery use.

3 min read Read →
Features

Strobe Lights: Frequency, Uses, and Photosensitivity Precautions

Understand strobe frequency and duty cycle, browser timing limits, and photosensitivity precautions before using flashing light.

3 min read Read →
Creative Uses

Using a Screen as a Photography Light

Position a phone or tablet screen for portrait fill, product photos, catchlights, and color accents, with brightness and timing limits.

3 min read Read →
Emergency

Visual SOS and Morse Code: Patterns, Controls, and Signaling Limits

Check Morse patterns and timing, start SOS or a custom message, and understand screen visibility and flashing risks.

3 min read Read →

Ready to use the tool? Open the free online flashlight .