Canine Collar Mild, 4 Modes Canine Lights for Evening Strolling, RGB Colour Altering Canine Mild, Rechargeable Canine Collar Lights for Nighttime Clip On, IP68 Waterproof Canine Strolling Mild for Canine Collar

These work well. Rechargeable is a nice feature. Highly recommended.
These work very well. They can be easily attached to collar, leash or many other places. Being rechargeable is mandatory for daily dog walkers – coin batteries get expensive quickly. Attaching them to the collar has unexpected feature – the white light illuminates problem areas on the sidewalk so they are visible. Highly recommended.

Useful Lights
I clip these to my dog’s harness for walking at night. There are four modes but I only ever use the steady white light, and these things last for a couple weeks on a single charge. I really should get a ring to clip them to so they sit flat with the harness because the design of the clip means that the light illuminates one side of my pup and not the other.The clipping mechanism itself is strangely unreliable. My dog had the zoomies for a minute and when he stopped and shook, the light went flying. The metal bit can come undone so the spring doesn’t work, or it can get bent out of position, or I don’t even know. All I know is the lights have come unclipped and fallen off more than a handful of times in the last month.Overall these are decent for the price. Once it is time to replace these, I might look for some other option though

See where your dog is at night!
I received a similar product as a gift but it had a couple of button batteries to power it. It was a pain to disassemble the unit and replace the batteries. This unit is rechargeable without having to open it up. I received two so I can have one charged and ready to use all the time. This light is visible from a very long distance so it’s very easy to see where the dog is when roaming around off leash. It’s also good when walking the dog on the street with the light in flash mode so drivers can see the dog when dark. It’s great at a campground to always know where your pet is. It also helps my dog to see in front of her when she’s nosing around. It snaps on and off her collar easily.

Fix the catch – otherwise great.
These are better than the other brand that looks similar and more reliable than the collars. While the Blazin collars are extremely visible, the dog will turn them off when they lie down or roll on to the switch, so you have to keep turning them back on. I turn mine back on several times a day. These, however, keep right on working. Flashing red is pretty visible in the daytime. At night, solid white is better. They are only water resistant as long as the usb port plug is fully and properly inserted. That takes some dexterity and patience. It will stay inserted all day maybe 2 times out of 3. If it’s not in when your dog takes a dip, this may be salvageable if you put it aside and let it dry out thoroughly. The catch sucks. If you depend on that, these come off pretty regularly. Once attached to the collar I use epoxy putty to close off most of the opening leaving only a hole big enough so this can swing on the collar’s d-ring. That not only secures the light, but also makes it less likely to catch on something like a bush. If you’re putting this on a small dog, beware collars. Put this, preferably 2 – 1 on either side – of a Gooby elastic V-neck harness instead. Much safer. These 2 flaws are why I gave this 1 star on durability and sturdiness. The catch can be fixed and the poor plug can be worked with, at least until it comes off and gets lost. The one other thing that is as minor annoyance that could be improved is the use of a micro-usb port. They new type Cs are much, much easier to use.

Good product so far. Just as good or better than more expensive brands.

Needed a new light for my dog. 4 colours. Works well.