ThinkPet Dog Collar Light for Night Walking, Waterproof Dog Night Light Clip Pet Flashing LED Walking Light (100hours) for Harness/Leash Safety Blinking Light for Night Running Cycling Climbing Party

It's so-so. Suitable for a large dog as it's on bulkier side. After a short while (two weeks of very occasional use) it just doesn't light up very well. It does stay on the collar really well.

We have 2 of these collar lights for our dogs. The lights were put on the dogs' collars when they arrived, and they have not been removed. Our dogs are very active. We use the lights every night, and they have functioned perfectly. We have not even had to change the batteries.The lights are a convenient size, and they are easily visible at night. We like everything about them. Based on our experience (i.e., two lights for 9 months), we can recommend them without reservation.

Otherwise a good product.

Seemed sturdy but not a solid color as you would think as seen. Twinkle lights instead of solid

I wish I could say they were a good purchase, but they weren't. Stopped working right at the month mark- thought it was battery life but no, just bad parts.Too bad, they seemed nice, light and easy.Buying a different brand!

This is a colorful light, but I ordered yellow and expected yellow. What I got red, green and blue lights inside a yellow plastic. Plus there is no solid light only obnoxious blinking.

The media could not be loaded.  It is not good for dogs and eyes. Very bright, flickers, and flashing no matter what setting and the LED is so bright it will cause dogs to have siezures.

It’s very hard to turn on and off. First one broke after the first week. It’s plastic not metal.