Video Call Light – Light Your Face With Your Screen
Turn a spare screen into a soft light for Zoom, Teams or Meet. Pick a color temperature, set the brightness and go full screen, then check the result with the webcam test.
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How to Use This Tool
What is this Test?
A bright, evenly lit screen makes a surprisingly good soft fill light for video calls: it sits right in front of your face, it is diffuse, and you can change its color. This tool turns a second monitor, laptop or tablet into that light - pick a color temperature, set the brightness, and go fullscreen.
Choosing a Color Temperature
- Warm (~2700K): matches typical home bulbs and flatters skin tones in the evening
- Soft white (~4000K): a neutral middle ground that works in most rooms
- Daylight (~5500K): matches a window during the day, so light from both sides blends
- Cool (~6500K): matches most office LED panels and bright overcast daylight
Where to Put the Screen
- Height: at or slightly above eye level - light from below looks unnatural
- Angle: 30-45 degrees off to one side gives shape to your face; straight on flattens it
- Distance: closer is brighter and softer; move it back if you see a bright reflection in glasses
- Background: keep the room a little darker than your face so the camera exposes for you
Testing Tips
- •Match the preset to the strongest other light in the room so colors do not clash
- •Turn the screen brightness itself up to maximum and use the slider to dim
- •If you wear glasses, raise the light and tilt it slightly down to move the reflection out of frame
- •Close other windows on the light screen so nothing else glows on your face
Keyboard Shortcuts
How this test works
The light is simply a full-screen panel in the color you pick: the presets approximate common color temperatures from about 2700K to 6500K, and the brightness slider dims the panel on top of your screen's own brightness. Nothing about your camera or room is accessed by this page.
Pro Tip: A laptop screen alone is rarely enough in a dark room, but combined with a window or a desk lamp on the other side it removes harsh shadows. Check the result in the webcam test: most webcams look noticeably sharper once your face is well lit, because they no longer have to boost gain. A quick mic test catches the other common call problem.
Frequently Asked Questions
Does a screen really work as a light for video calls?
Yes, in a dim room. A bright screen close to your face gives soft, even light from the front, and webcams look sharper once they no longer have to boost their gain. It is weaker than daylight or a ring light, so it works best as fill light.
Should I use a warm or a cool light?
Match the strongest other light in the room. Use warm in the evening under ordinary lamps, and daylight or cool during the day near a window, so the two light sources do not clash on your skin.
Which screen should I use as the light?
A second monitor, a tablet or a spare laptop placed just beside or behind your webcam works best. You can use your main screen in a pinch, but then the light covers whatever you were looking at.
Why does my face still look dark on camera?
Usually a bright window or lamp behind you. The webcam exposes for the brightest part of the picture, so your face drops into shadow. Turn so the window is in front of you, or move the light screen closer.
Will this drain my laptop battery?
A screen at full brightness uses noticeably more power, so plug in for long calls. On an OLED laptop, warm and dim settings use less power than bright cool white.
Written by R. Ottens, front-end developer & image editing specialist.