"Light trapping is a great way to learn more about the wildlife living in your local area. It’s easily repeatable and harmless to the insects involved. By gently capturing them in a jar, the insects can be released back into their habitat once they’ve been recorded.
It is a simple but effective way of collecting a lot of data in a short amount of time – though this does depend on factors like location and weather conditions."
Note: The above comes directly from their website. Click here to read more!