The Rockbros RL1F Road To Sky rear bike light combines illumination with a brake sensor and a tracking function compatible with iOS devices. When it detects deceleration, it automatically increases its brightness for approximately 3 seconds. It features six lighting modes, two brightness levels, and a memory function that restores the last selected setting.

In automatic mode, it enters standby after approximately 30 seconds of inactivity and turns back on when it detects vibration or a change in lighting conditions. It can be mounted under the saddle or on its seatpost, with an adjustable angle to direct the light backwards.

• Type: Rear bike light
• Brightness: 145 lm
• Lighting modes: 6
• Brightness levels: 2
• Brake sensor: Automatically increases brightness for approximately 3 seconds when deceleration is detected
• Tracking function: Compatible with iOS devices
• Automatic mode: Enters standby after approximately 30 seconds of inactivity and reactivates when vibration or a change in lighting conditions is detected
• Setting memory: Restores the last selected setting
• Water resistance: IPX5
• Mounting: Under the saddle or on its seatpost
• Material: Aluminum alloy, PC, PA66 + PC, and silicone
• Charging: USB-C
• Battery capacity: 400 mAh
• Runtime: Approximately 11–45 hours
• Charging time: Approximately 2 hours
• Dimensions: Approximately 4.3 × 4.3 × 3.2 cm
• Weight: Approximately 49 g
• Package contents: Light, saddle mount, seatpost mount, 2 silicone straps, mounting hardware, and USB-A to USB-C cable