night vision is green, so the second vid is bullshit. also, you cannot see in infrared, thats why its called INFRA red!!
All these devices do is filter certain colors, making visible light look different.
The second video is exactly the same as the first, aside from the LEDs on the sides. Those are basically useless however seeing as you CANNOT SEE INFRARED!!!
Now, if you take the infrared LED's and attach them to a camera lens, you can see in the dark without others knowing, but as for seeing in the dark, you cannot.
Oh, and just a tip, DO NOT FOLLOW the guys advice in the first video! He has many videos on the internet, and they are not true. He said you could break apart a 9V battery and use the cells as AAA batteries. This made sense to me seeing as AAA cell batteries are 1.5V each, and a 9V battery has 6 cells in it. I tried this idea, and now my TI 84 silver calculator no longer works. DO NOT LISTEN to this man, he will break your things!!!