05/16/2026 10:35 a.m.
https://cablematic.com/en/products/rear-and-automatic-brake-light-for-bicycle-BJ022/

Rear and automatic brake light for bicycle

REF: BJ022
Specifications
  • Rear light and automatic brake for bicycle.
  • Automatic function: with daylight it turns off and only turns on when braking. Manual function: always on and increases intensity (X3) when braking.
  • 7 types of lighting: 3 levels of intensity in fixed light, 2 levels of intensity in normal flashing, 1 fast flashing and 1 type of lighting type "breathing".
  • System to hook the saddle rails. 45mm gap between rails.
  • COB LED high brightness. 100 lumens 180 ° coverage. 500 mAh battery Includes charging cable to connect to USB port. Requires 5V 1A recharge current (charger not included).

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More info
PVP
8.98
Price including VAT: 8.98
PVD
6.80
2 years
warranty
14 days
returns
100%
safe

Immediate availability: >10

More info
Specifications
  • Rear light and automatic brake for bicycle.
  • Automatic function: with daylight it turns off and only turns on when braking. Manual function: always on and increases intensity (X3) when braking.
  • 7 types of lighting: 3 levels of intensity in fixed light, 2 levels of intensity in normal flashing, 1 fast flashing and 1 type of lighting type "breathing".
  • System to hook the saddle rails. 45mm gap between rails.
  • COB LED high brightness. 100 lumens 180 ° coverage. 500 mAh battery Includes charging cable to connect to USB port. Requires 5V 1A recharge current (charger not included).

More info

Bicycle rear light Automatic brake light Increase the light intensity (X3) when the cyclist brakes. 2 modes of use: automatic (with daylight the pilot goes out a few seconds after starting the march or when the bicycle is parked) and manual (the pilot is always on). In both modes, the brake light is activated when the cyclist brakes. 7 types of lighting: fixed light of 3 different intensities, flashing of 2 different intensities, fast flashing and breathing (low-high-low intensity cycles ... continuously).

specs
  • Rear light and automatic brake for bicycle.
  • Automatic function: with daylight it turns off and only turns on when braking. Manual function: always on and increases intensity (X3) when braking.
  • 7 types of lighting: 3 levels of intensity in fixed light, 2 levels of intensity in normal flashing, 1 fast flashing and 1 type of lighting type "breathing".
  • System to hook the saddle rails. 45mm gap between rails.
  • COB LED high brightness. 100 lumens 180 ° coverage. 500 mAh battery Includes charging cable to connect to USB port. Requires 5V 1A recharge current (charger not included).

  • Gross Weight: 81 g
  • Product size (width x depth x height): 5.5 x 5.3 x 3.7 cm
  • Number of packages: 1
  • Packages size: 10.8 x 8.0 x 3.5 cm

Videos

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Technical terms

  • Battery charging cycles
  • USB
  • MicroUSB
  • Mini USB
  • Lumen
  • USB 3.0
  • Reversible USB Type-C
  • LED COB
Battery charging cycles

A charge cycle occurs when you use 100% of your battery's capacity. Lifespan is defined by total cycles before capacity drops below 80%.

ParameterTechnical Description
DoDDepth of Discharge level.
SoHState of Health of the cell.

Lifespan Calculation

Maintain the battery between 20% and 80% to maximize chemical stability and longevity.

Advantages

Controlled charging reduces heat and prevents lithium plating.

Note: Use original chargers for optimal safety.

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