Here's the best night shot I can muster. It's not a true reflection of how they look at all to be honest but i can use it to describe it to you.
Thickness.
The lights are not as thick as they look here. So, look at the left hand lights in the picture, and concentrate on the very outer left ring. If you imagine a clock face, well between 9pm and 12pm on the ring here is how they look all the way around in reality.
Colour.
They appear blue in the photo. However, in reality they are not at all . They are completely white. And a very 'solid' crisp white, rather than a transulcent wishy washy type.