The lighted strip only half covers the collar and the first part of the strip lights up well, however the lighting fades off down the length of the strip. Still it does look good at night enabling to see my German Shepherd better in the dark. The faded part of the strip gets well hidden by his fur, but the brightest part of the strip stands out quite well. We have only used it 3 times, so time will tell if it stands up to the test of time well. The 2 different modes of lighting (continuos or flashing) is a good option. 4 stars.