How to measure light intensity in a particular place using iphone
<p>Thanks in advance.
I want to find out light intensity at some place using iphone. I searched in google and find some apps also But didn't get how to measure. Links to that apps are</p>

<ul>
<li><a href="http://itunes.apple.com/in/app/light-meter-free/id410228606?mt=8" rel="nofollow">http://itunes.apple.com/in/app/light-meter-free/id410228606?mt=8</a></li>
<li><a href="http://itunes.apple.com/in/app/pocket-light-meter/id381698089?mt=8" rel="nofollow">http://itunes.apple.com/in/app/pocket-light-meter/id381698089?mt=8</a></li>
<li><a href="http://itunes.apple.com/in/app/claplight/id321594648?mt=8" rel="nofollow">http://itunes.apple.com/in/app/claplight/id321594648?mt=8</a></li>
<li><a href="http://itunes.apple.com/in/app/lightmeter/id320768222?mt=8" rel="nofollow">http://itunes.apple.com/in/app/lightmeter/id320768222?mt=8</a></li>
</ul>

<p>Do any one have an idea to find out please help me.</p>
