LED Rear Bike Light with Brake Sensor

Two lenses. One clear rear signal.

A compact red LED bicycle rear light with twin circular lenses, a top-mounted button and a supplier-described smart brake-sensing function.

Rear light with brake sensing

The supplier describes a smart brake function for this light. The red front cover and paired lenses are shown on a black housing, with the light positioned on the seatpost below the saddle. Follow the supplied instructions to set up and check the brake-sensing response before riding.

Output and battery

The supplier lists an output range of 5–60 lumens, depending on mode, and a built-in 680 mAh lithium battery. Its up-to-30-hour runtime is an estimate that varies with mode, brake-sensor activity, charge level and battery condition; it is not a promise of 30 hours at maximum brightness.

Recharge for the next ride

The listed charging input is 5 V / 0.5 A. Recharge according to the manufacturer's instructions. A charging duration and connector type are not specified in the listing, so check the supplied light before choosing a cable or power source.

Check the seatpost mounting

The product images show a strap around the seatpost holding the light rearward. Check the attachment against your post shape and available clearance, and position it where luggage and clothing will not obscure it. An exact clamp-diameter range is not supplied.

The A red option

This listing has one original option, A red, for one red rear light with its pictured seatpost attachment. The bicycle shown in use is not included. Confirm the light and mount are secure and working before each ride.