The moment a dog needs to be visible most - a dark field, a rainy evening walk - is also the moment a battery-powered light collar is most likely to have died or let water in. Kowloon build this one around solving both problems at once rather than just adding a light to a normal collar.

A waterproof PVC layer fully seals in the LED light strip, which Kowloon say protects it for use in rain as much as darkness. It's USB rechargeable, with a charging cable included, and offers three lighting modes: fast flash, slow flash and continuous. Battery runtime is rated at over 5 hours in flashing mode and over 3 hours on continuous. The collar itself is made from durable PVC and nylon, and Kowloon rate it to withstand tension up to 120kg, with an adjustable length and a side-release buckle for quick on and off.

• Waterproof, fully sealed PVC light strip
• USB rechargeable, cable included
• Three lighting modes: fast flash, slow flash, continuous
• Runtime: 5+ hours flashing, 3+ hours continuous
• Tension rated up to 120kg
• Adjustable length, side-release buckle
• This page covers Small/Medium and Medium/Large in orange

On the size bands. This page covers two size bands - Small/Medium and Medium/Large - and Kowloon don't publish exact neck circumference ranges for either on this card, so if your dog is close to a size boundary it's worth comparing against a collar you already own.

Who it's for: owners of high-energy or night-walking dogs who want genuine visibility in the dark and in wet weather, rather than a light-up collar that only really works when it's dry.