02
Jun
Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead
Last Updated: June 6th, 2010

The EVO 4G, which is coming out in only 2 days on June 4th, comes with a pretty decent 8MP camera. One of the best things about the camera is that it in turn comes with a shockingly bright for a cell phone dual LED flash. Here it is:

Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead

Wouldn't it be perfect if you could use these LEDs on demand, turning the EVO into a bright flashlight? You can do that with some other phones, and EVO's little sister HTC HD2, which has essentially the same body but runs WinMo, even includes a native app to do so.

LED Desire Light

I was looking for a way to enable this flashlight functionality on the EVO and, thanks to this post on the SprintUsers forum, discovered LED Desire Light.

LED Desire Light is a brilliant app which lets you use the EVO's LEDs on demand and provides 3 different brightness levels, along with Morse Code functionality. There is even a quick one-touch SOS button for when you're trapped in a car under water and need to signal Superman to save you.

Even though the app was made to run on the Desire, as the name suggests, it works perfectly on the EVO. Oh, and it doesn't need root.

There is also a setting that lets automatically dims the main screen when the LEDs are on, to save battery.

Hands-On

Check out the screenshot and photos I took in complete darkness, while trying out various brightness levels:

Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead

Both sets of photos go in this order of the brightness settings: low, medium, high.

The flash looks about the same in the 1st set but take a look at the background - it gets darker every time, which shows how the camera I was using was adjusting to the LED brightness level.

The medium and high turned out about the same in the 2nd set but they were quite different in reality - the high level lit up the whole bathroom. I blame the point-and-shoot I used yet again.

Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead Forget Using Your HTC EVO 4G's Screen As A Flashlight - Use Its Blinding Dual LED Flash Instead

The Morse Code functionality also worked as advertised.

The only thing missing now is the home screen widget to enable a one-touch flashlight, which I am hoping the author can add, once he reads this sweet review.

Update: Someone else made the On/Off widget - download it from this xda thread. It works wonderfully on the EVO!

Here's a QR code to get this totally free app from the Market:

LED Desire Light QR code 

Enjoy your new, more functional EVO!

A Word Of Caution

The Internet seems to be split on the opinion of whether keeping the LED lights turned on for more than a few seconds can severely damage them or not but some people advise against using any flashlight apps that keep the light on permanently.

I am not a physicist and I won't be pushing the EVO's LEDs to that extreme of a test, but I think a caution for you, our readers, is definitely in order - proceed at your own risk.

Artem Russakovskii
Artem is a die-hard Android fan, passionate tech blogger, obsessive-compulsive editor, bug hunting programmer, and the founder of Android Police.
Most of the time, you will find Artem either hacking away at code or thinking of the next 15 blog posts.

  • Steve

    Hopefully this wont kill the leds. They are disabled on video mode on the evo, probably to help prevent them from failing.

  • Emrys

    LEDs have a general life expectancy of 50,000 hrs. But this is not the first time i have heard someone indicate concern for their life span... am I missing something?

    btw, how the f*** is the above "spammy" stupid comment filter

  • andddlay

    Yeah, I love this feature on the Pre. LED Light seems promising - it has a widget too! = a lot easier than opening an app.

  • andddlay

    Yeah, I love this feature on the Pre. LED Light by picolyl seems promising - it has a widget too! = a lot easier than opening an app.

  • IceBone

    If you want a flash led torch widget, try out this one:

    http://forum.xda-developers.com/showthread.php?t=676328

    I don't know if it works for the EVO, but it does just fine on my desire.

  • GbrilliantQ

    HD2 is it's little sister?

    HD2 is the first phone with the 4.3" screen. I think it makes the HD2 the older brother...

    • http://www.AndroidPolice.com Artem Russakovskii

      It's a little sister because it runs WinMo :)

  • http://www.htcevoforum.net HTC Evo Forum

    I guess dual LED > Xenon for some things other than video. Very cool app for real though, cant tell you how many times a flashlight comes in handy. Who would have ever thought they were unintentionally build into phones!

  • chris

    Hi guys.

    Wouldn't worry about the LEDs dying. HTC include a flash light app on the wildfire and Desire HD...don't think they would do that if it was going to kill them. 'Cause by now this is common knowledge.

    Laters.