"I have had several opportunities to use the lighted collar you manufacture on night searches here in Western Washington (USA), and would like to let you know that it is not only a quality product in every way, but far superior to light sticks or the collars available in pet stores. Visibility is excellent, and it holds up to plowing through thick undergrowth. It is well worth the money!Thanks (and my dogs thank you)!" Tony Copes, Cara, Jack, and Darby