How bright is the screen flashlight?

The screen light fills your entire display at maximum brightness. For even more light on mobile, enable the camera LED torch which activates your phone's physical flash LED.

Does the camera LED work on my phone?

The camera LED torch works on Chrome for Android on most devices. It does NOT work on iPhone/iPad (Safari does not support the torch API) or Firefox for Android (no torch API support). If your LED doesn't turn on, the tool tells you why — try opening the page in Chrome instead. You can still use the screen light in any browser.

Can I set a timer so the light turns off automatically?

Yes. Enter any duration in minutes and seconds (from a few seconds up to many hours) or tap a quick preset (30s, 1m, 5m, 15m, 30m, 1h). The light turns off automatically when the timer runs out. Your last-used color, brightness and timer are saved so they are ready to go next time.

Will my screen stay on while using this?

Yes, the tool uses the Screen Wake Lock API to prevent your device from dimming or sleeping while the light is active.

Does it drain my battery?

A bright screen does use more battery than normal. For extended use, keep your device plugged in.

Can I use this offline?

Yes. Once the page has loaded, it works without an internet connection.

Which color is best for preserving night vision?

Red light preserves your eyes' dark-adapted state much better than white or warm light — useful for stargazing, reading a map at night, or walking around without ruining your night vision. Tap the Astronomy (red) reading preset for a one-click setup — it sets red at 15% brightness, the sweet spot for keeping your rod cells adapted.

Can I read at night without it being too bright?

Yes. The brightness slider goes down to 3% so you can use it as a dim reading light in pitch dark without blinding yourself. The Book (warm) reading preset sets a comfortable amber glow at 8% — easy on the eyes for extended reading.

Can I see the time while the light is on?

Yes. Tick the Clock checkbox and the current time appears in large faded digits in the middle of the screen while the light is on. Useful if you're reading in bed and don't want to dismiss the light just to check the clock.

Does the light fade out gently at the end of a timer?

Yes. In the last 30 seconds of a timer, the light gradually dims to off so you're not suddenly plunged into darkness. Helpful as a sleep light.

Is there a mobile app?

A native Android app is in the works — it will give you a one-tap torch without opening the browser and will keep working offline. The web version works on any device right now.

What does Candle mode do?

Candle mode fills the screen with a warm 1800 K glow and simulates the natural 5 Hz flicker of a real flame (scientifically measured — see Nature 2018 study on candle flame oscillation). It is calibrated to be perceptible without being distracting, ideal as a cozy nightlight or reading backlight. The flicker pauses at very low brightness so it is not annoying in bed.

What are Sunset, Aurora and Dawn modes?

They are ambient-gradient modes. Sunset uses long-wavelength oranges and reds that do not suppress melatonin, making it friendly for late-evening use. Aurora cycles through tranquil teal and violet. Dawn fades from deep purple to peach — useful as a slow sunrise wake-up backdrop. You can also pick any two colors yourself with the Custom gradient.

Can I use my own image as a background?

Yes. Switch to Image mode and choose an image from your device. It stays entirely on your phone or computer — it is never uploaded to any server. Great for turning your screen into a soft nightscape, a star chart for kids, or a personal mood-light photo.

무료 온라인 손전등

화면을 밝은 빛으로 바꾸세요. 모바일에서 카메라 LED를 활성화하세요.

어떤 데이터도 기기를 떠나지 않습니다

켜려면 버튼을 누르거나 스페이스바를 누르세요

밝기 100%

색상

타이머 분 초

빠른 설정

독서

모드

시계 조명이 켜진 동안 화면에 시간 표시

작동 방식

전원 버튼 누르기: 전체 화면이 밝고 균일한 광원으로 변합니다.
밝기 조정: 밝기 컨트롤을 원하는 수준으로 드래그하세요.
색상 선택: 최대 밝기를 위한 흰색, 편안한 독서 조명을 위한 따뜻한/호박색, 야간 시야 보존을 위한 빨간색.
전체 화면으로 전환: 조명 영역을 최대화하기 위해 브라우저 인터페이스를 제거하세요. 화면은 자동으로 켜진 상태로 유지됩니다.
타이머 설정: 조명이 자동으로 꺼지는 지속 시간을 선택하세요 — 핸즈프리 사용에 유용합니다.
카메라 LED (모바일): 호환되는 기기에서 후면 플래시 LED를 활성화하여 훨씬 더 밝고 집중된 빔을 얻으세요.

사용해야 할 때

정전: 앱 다운로드 없이 모든 기기에서 즉각적인 조명.
어둠 속에서 물건 찾기: 열쇠, 자물쇠, 떨어진 물건.
야간 독서: 부드러운 독서 조명으로 따뜻한 호박색 또는 어둑한 흰색을 사용하세요.
캠핑 또는 야외: 손전등 앱이 설치되지 않은 경우 빠른 조명.
야간 시야: 빨간 빛은 어둠에 적응한 눈을 보존합니다.

화면 조명 vs 카메라 LED

화면은 넓은 영역에 분산된 빛을 생성합니다 — 방을 밝히거나 읽기에 완벽합니다. 카메라 LED는 전통적인 손전등처럼 훨씬 더 밝고 집중된 빔을 생성합니다.

카메라 LED 호환성: Android의 Chrome (대부분의 기기). iPhone/iPad(Safari에는 토치 API가 없음), Android용 Firefox(토치 API 없음) 또는 데스크톱 브라우저에서는 작동하지 않습니다. 도구가 자동으로 지원을 감지하고 기기가 사용할 수 없는 이유를 표시합니다. 최상의 경험을 위해 Chrome에서 페이지를 여세요. 화면 조명은 모든 브라우저에서 작동합니다.

무료 온라인 손전등

작동 방식

사용해야 할 때

화면 조명 vs 카메라 LED

관련 도구