|Glowdoggie is a waterproof (not just water resistant) LED dog collar. Made from “Superflux LEDs which have a lifespan of about 150,000 hours (roughly 17 years) and are of the same high quality as are found in many premium German cars such as Mercedes Benz and Audi.”
"Glowdoggie™ lighted dog collars have a patented, built-in motion sensor that automatically turns on the LEDs when the battery section is facing downwards or sideways, and slowly turns them off when the batteries are held in a motionless, upwards position for over 45 seconds. It’s as simple yet as technically advanced as that. You just slide it on over the dog’s head and off you go. "