Trust Mr. Chips.
Knog, creators of spirited bike lights that help cyclists stay visible on dark roads, believes in giving its lights some style and personality, and the Blinder Mob Mr. Chips Rear Light is no exception. It was developed specifically with urban cyclists in mind, but can be used by any cyclist hoping to increase their visibility on dark roads or in traffic during daylight hours.
Once turned on, Mr. Chips appears as a 44 lumen strip of light on the back of your seatpost, glowing red to make you and your bike pop against a sea of flashing brake lights and blinkers. Mr. Chips runs on a rechargeable lithium battery and can last for up to 54 hours without being plugged in, depending on the mood — or rather, mode he's in, and he's water-resistant, so he won't protest if you take him through some unexpected inclement weather.