What can this screen effects tool be used for?

This tool can be used for temporary ambient room light, simple webcam or product lighting, display demonstrations, full-screen background color sessions and quick access to animated color effects in the browser.

Can it keep the display awake?

When supported by the browser, the page requests the Wake Lock API to help keep the display awake during use. Device power-saving rules or browser limitations can still override it.

Does it support long sessions like 10 hours?

Yes. You can start full-screen sessions with optional timers including 15 minutes, 1 hour, 4 hours and 10 hours, and you can also run without a timer.

Ambient light + full-screen effects

Screen Effects & Ambient Light Studio

Use your display as a full-screen light source, background surface or effect panel. Open warm white light, pink glow, candlelight, breathing effects, rainbow cycles and more—with timer options up to 10 hours.

No installation Works on desktop and mobile browsers 10-hour timer option Wake-lock support when available

Open screen color tools Pure black screen

Live preview

Pick an effect, then go full screen

The preview updates instantly. Full controls appear on movement, tap or click during full-screen use.

Warm White

A comfortable soft-white preset for room ambience, projector preparation or gentle desk lighting.

Ambient light Slow speed No timer

Brightness Adjust preview and full-screen brightness 75%

Session timer Choose an optional countdown

Session runs until you exit.

Animation speed Static presets stay solid; animated effects follow this speed

Helpful notes Before starting

Wake-lock is requested automatically in full screen when supported.
Very bright static colors are best used only when needed.
Fast flashing can be uncomfortable—party mode uses moderated pacing.

Open full white screen

Preset library

Built for search intent and real use

Ambient lights, static screens and animated effects in one tidy section.

Ambient light

Soft nearby lighting

Animated effects

Gentle motion and cycles

Tip: For exact solid colors, downloads and simple long-duration backgrounds, use Screen Color Tools. This page is the more flexible studio for ambient light, animated effects and session controls.

Popular destinations

Static screen pages people often need

These pages are better for pure full-color sessions, black screens, white screens and named color backgrounds.

Black screenPure black background, timer options and full-screen use. White screenBright white full-screen page for lighting and inspection. Pink screenStatic pink background for videos, selfies and backdrop use. Yellow screenWarm bright color background for display and creative use. Screen color toolsOpen many colors, custom hex values and downloadable backgrounds. Gradient testCheck banding, smooth transitions and tonal stepping.

Use cases

What this section is good for

The tool now serves both search demand and practical screen usage instead of acting as only a hidden color surface.

Room ambience

Use warm white, candlelight or pastel presets to create a comfortable desk or room glow.

Photo & selfie light

Soft white, daylight and pink glow work as quick nearby fill lights for webcams and phone cameras.

Display demonstrations

Open bright solid colors or cycles on monitors, TVs, kiosks and other displays when presenting.

Long sessions

Run 10-hour sessions for black, white or ambient use while the timer and wake-lock help keep things controlled.

YouTube support

Use your YouTube channel for ultra-long videos

For 10-hour black screen, white screen, pink screen and other long-watch content, you can also build companion videos on your channel and link both ways between the pages and videos.

Pure White · #FFFFFF Warm White · #FFF4E5 Red · #FF0000 Black · #000000 Green · #00FF00 Blue · #0000FF More on @MyChannel92

Quick answers

Frequently asked questions

Short, useful answers that match what users are typically trying to do.

Can this replace a professional light?

No. It is helpful as a temporary screen light or ambient background, but it is not a calibrated studio light source.

Can I use it for 10 hours?

Yes. Choose the 10-hour timer or run without a limit. Full-screen controls remain available on movement or tap.

Will my device stay awake?

The page requests wake-lock support when available, but actual results still depend on browser, device and battery rules.

Related tools

Continue with another display test

Move into full diagnostics when you need to inspect the screen rather than simply use it as a light surface.