White light or IR Led for Night Vision?

White light or IR led , which one is better for night vision?

We did a simple test to see the difference between them.
Below picture is to take a snapshot at day mode. There are a group of number in 2 meter, the other group of number in 5 meter and one person to join at this testing.

Now we use a cube type of IP camera with built-in white light to test.

<>White Light

The person stands in 2 meter from IP camea. By this picture, we can 

1. Identify this person and circle him in red

2. The picture is color

In 5 meter from IP camera. By this picture, it is very hard to see him.

We use a cube type of IP camera with IR led to test
<> IR Led

The person stands in 2 meter from IP camea. By this picture, we can
1. Identify this person and circle him in red
2. Identify the number next to the person
3. The picture is black and white

In 5 meter from IP camera, we can see
1. Identify this person and circle him in red
2. Identify a part of numbers
3. The picture is black and white

Moreover, we found the white light is shining at dark. The person can easily see the white at 5 meter. The white light is suitable for shocking intruders, instead of monitoring something at dark. IR led is not easy to see at 5 meter and can be hidden at dark to secure family and assets.