Cyclami CY 120 Rear Light

The Cyclami CY120 Rear Light is a compact smart bicycle tail light designed to improve rider visibility and provide automatic brake indication during cycling. Its intelligent sensing system combines brake sensing, light sensing and vibration wake-up to adapt the light to changing riding conditions. When braking is detected, the light can increase to maximum brightness for approximately two seconds, helping alert traffic approaching from behind. The CY120 offers six lighting modes, including single flash, double flash, breathing flash, steady light, flowing light and spiral effects. Its 400mAh rechargeable battery provides approximately 8 to 40 hours of runtime depending on the selected mode. The carbon fiber and PC body keeps the light lightweight, while IP65 water resistance provides protection against rain and road spray. Type-C charging and dual mounting options make it practical for everyday cycling.

Key Features

• Brake Sensing: Automatically increases brightness for approximately 2 seconds when braking is detected

• Smart Sensing: Combines light sensing, brake sensing and vibration wake-up for automatic operation

• Lighting Modes: Six lighting effects provide different visibility patterns for different riding conditions

• Battery: 400mAh rechargeable battery provides approximately 8–40 hours of runtime depending on the mode

• Water Resistance: IP65 protection helps protect against rain and road spray

• Charging: Type-C charging provides convenient rechargeable power

• Construction: Carbon fiber and PC body offers a lightweight and durable design

• Weight: Approximately 24–27g depending on specification reference

• Mounting: Supports seatpost and saddle-rail mounting

Product Specifications

• Brand: Cyclami

• Model: CY120

• Product Type: Smart Bicycle Rear Light

• Body Material: Carbon Fiber + PC

• Battery Capacity: 400mAh

• Battery Type: Rechargeable battery

• Battery Life: Approximately 8–40 hours depending on lighting mode

• Charging Port: Type-C

• Charging Voltage: 5V

• Waterproof Rating: IP65

• Dimensions: Approximately 39 × 29.5mm

• Weight: Approximately 24g

• Lighting Modes: Single Flash, Double Flash, Breathing Flash, Constant Light, Flowing Light and Spiral

• Smart Functions: Light sensing, brake sensing and vibration wake-up

• Mounting Options: Seatpost and saddle rail

• Bike Compatibility: Suitable for compatible road bikes, MTB, hybrid bikes, gravel bikes and commuter bicycles

Smart Brake & Visibility System

• Brake Detection: The light detects braking and increases output for approximately two seconds to provide a clearer warning to riders and vehicles behind

• Light Sensing: Smart mode can respond to surrounding brightness and reduce unnecessary daytime operation

• Vibration Wake-Up: After approximately 2.5 minutes without movement, the light can enter sleep mode and wake automatically when vibration is detected

• Battery Monitoring: Built-in indicators provide a visual reference for the remaining battery level

• Smart Operation: Automatic sensing reduces the need for frequent manual control during changing riding conditions

Easy Operation / Usage

• Power Control: Press and hold the power button to turn the rear light on or off

• Mode Selection: Short press the button to cycle through the available lighting modes

• Smart Mode: Double-click the button to activate Smart Mode when supported by the current operating state

• Seatpost Mounting: Secure the supplied mount to the seatpost using the appropriate rubber O-ring

• Saddle Mounting: Attach the saddle-rail mount securely beneath the seat

• Charging: Open the charging-port cover and connect the supplied Type-C cable to a suitable 5V USB power source

Why Choose This Product

• Brake Awareness: Automatic brake sensing provides an additional visual warning when slowing down

• Smart Operation: Light and vibration sensing reduce the need for constant manual control

• Long Runtime: 400mAh battery capacity supports extended use between charges

• Lightweight Design: Compact construction adds minimal weight to the bicycle

• Weather Protection: IP65 protection makes it suitable for everyday outdoor cycling

• Flexible Mounting: Seatpost and saddle-rail options provide installation flexibility

• Multiple Modes: Six lighting patterns allow riders to choose a suitable visibility style

In the Box

• 1 × Cyclami CY120 Rear Light

• 1 × Seat Rail Mount

• 1 × Seatpost Mount

• 1 × Mount Rubber Pad

• Rubber O-rings

• Zip ties

• 1 × Type-C Charging Cable