Bests & Worsts Reviews from Amazon

I live on a golf course and like to take walks in the evening with my dogs. Now that it gets dark by 5pm, I wanted something to help me keep track of them off-leash. They never get too far away, but they're quite hard to see at night. Searching amazon I found these and decided to try them. I've used them a few time, and I'm quite impressed! The blue is a bit dimmer than the red, but still plenty bright. It's nice that they have a fast and slow blink, plus steady on. I usually use the slow blink or steady. Several people have commented that they fall off and get lost. I haven't had that problem, and here's why I think that is the case. The polymer tube stays in the center lighted piece by friction. It appears to me that repeated removal would cause it to wear and not hold the fit properly. I carefully trimmed mine so they can be slipped over the dog's ears without pulling the unit apart. I took extra time and care getting this right - you don't want it to be difficult to put on, but you don't want it to slip off the dog's head when he/she is sniffing the ground. One of mine (part hound) spends more time with her nose to the ground, so I made hers a little more snug, but still could easily fit a few fingers between it and her neck. (She's the red collar in the attached pictures) Sorry for the quality of the pictures, but I wanted them at night so you can see the real effect. My camera phone (GS7e) was struggling because it was nearly dark. Overall I like it. I think you'll be happy if you take time to size it right and make sure it can be easily placed over their head but not loose enough to fall off.