The Knog Plus rear light produces red light with a listed 20-lumen output. It offers steady, strobe, pulse, Fancy Flash and Eco Flash modes, and its integrated USB plug removes the need for a charging cord.
Runtime is mode-specific: 2 hours in steady mode and up to 40 hours in Eco Flash. Versatile mounting permits bike or wearable use, and waterproof construction is listed. This is the rear model; the front version’s 40-lumen specification does not apply.






