Review on TDL-Brand Solar-Powered LED Reflective Dog Collar - High Visibility, Adjustable & Lightweight (Yellow, 50cm-60cm) by Stephanie Burgos

I ordered the smallest size thinking it would fit my dog but it was too big (our dog is 14lbs). It can be adjusted, but even then it was too loose around his neck and wasn't secure when he went outside. I loved the brightness and it's perfect for going outside. It comes with a USB charging cable, but it has been charged and is ready to use. It has what looks like a light sensor, but I think it's just for decoration because it doesn't do anything to turn on the light itself. It has two lighting modes, constant and blinking. There was some extra adhesive on top of our light sensor box, but it didn't affect the light itself. Very cool idea but definitely for big dogs.