I bought two of the yellow collars. They are very bright. Perfect for our night walks.
Collar works as it should. Only negative is that it is bulky especially for small dogs, but that is a non-issue when it comes to safety of the dog. The flashing mode works great on our 4 lb Chuweenie. Without the collar it is next to impossible to see her at night when she goes out to do her business. Buy with confidence. It's a Small price to pay to keep your puppy safe.
These collars are awesome. They work much better than any others we've tried over the years with "replaceable" batteries. The "USB style" charger is quick and easy to use. They say these shouldn't be worn in water, but our lab often goes in the lake with his on (of course, he's a lab!), and our first one lasted probably 3-4 years, even with getting wet. Highly recommend the product!
Collar is nice and bright, the collars look great on my dogs.
Great customer service.