1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Knog Blinder 600 Front and Blinder Square Rear Bike Light Set. This set is designed to enhance your visibility and safety during cycling, day or night, with powerful illumination and durable, waterproof construction.

Image 1: Knog Blinder 600 Front and Blinder Square Rear Bike Light Set. The image displays both the rectangular front light and the square rear light, showcasing their compact design.
2. Product Overview
The Knog Blinder 600 Front and Blinder Square Rear Bike Light Set offers a comprehensive lighting solution for cyclists. The front light provides a powerful 600 lumens, while the rear light ensures visibility with 100 lumens and a 450-meter visibility range. Both lights are USB rechargeable, IP67 waterproof, and feature multiple light modes to suit various riding conditions.
Key Features:
- Powerful Illumination: 600-lumen front light and 100-lumen rear light.
- Extended Runtime: Up to 120 hours for the front light (eco flash mode) and up to 60 hours for the rear light.
- USB Rechargeable: Convenient integrated USB-A connectors for cable-free charging.
- Waterproof and Durable: IP67 rated for all-weather use.
- Versatile Mounting: Includes durable silicone straps for secure attachment to handlebars and seatposts.
- Multiple Light Modes: Combined 14 light modes (6 for front, 8 for rear) for adaptable visibility.
3. Setup
3.1. Charging the Lights
Both the Blinder 600 Front and Blinder Square Rear lights feature integrated USB-A connectors for convenient, cable-free charging. A red indicator light will illuminate when the battery is low.
- Locate the integrated USB-A connector on each light.
- Plug the connector directly into any standard USB-A port (e.g., computer, USB wall adapter).
- The indicator light will show charging status (e.g., red for charging, green for fully charged).
- A full charge for the Blinder Square Rear light typically takes approximately 4 hours, providing up to 60 hours of runtime. The Blinder 600 Front light offers up to 120 hours of runtime on eco flash mode.
Video 1: Blinder Rear Bike Light. This video demonstrates the charging process for the Blinder Rear Bike Light, showing how to plug the integrated USB-A connector into a laptop and the indicator light status.
3.2. Mounting the Lights
The light set includes silicone straps for secure attachment to various bike components.
For the Blinder 600 Front Light:
- Select the appropriate silicone strap (small for 22-32mm diameter, large for up to 200mm circumference).
- Wrap the strap around your bicycle's handlebar.
- Securely attach the front light to the mount, ensuring it is firmly in place and facing forward.

Image 2: Knog Blinder 600 Front Bike Light mounted on a bicycle handlebar. The image shows the front light securely attached to the center of a bike's handlebar.
For the Blinder Square Rear Light:
- Select the appropriate silicone strap (small for 22-32mm diameter, large for up to 200mm circumference).
- Wrap the strap around your bicycle's seatpost or seat tube.
- Securely attach the rear light to the mount, ensuring it is firmly in place and facing backward.

Image 3: Knog Blinder Square Rear Bike Light mounted on a bicycle seatpost. The image shows the rear light attached to the seatpost, positioned below the saddle.
4. Operating the Lights
Both lights are operated using a single button for simplicity.
4.1. Power On/Off
- To turn the light ON, press and hold the power button for approximately 1-2 seconds.
- To turn the light OFF, press and hold the power button for approximately 1-2 seconds.
4.2. Changing Light Modes
Each light features multiple modes to optimize visibility and battery life.
- While the light is on, a short press of the power button will cycle through the available light modes.
- The Blinder 600 Front Light has 6 distinct modes.
- The Blinder Square Rear Light has 8 distinct modes.
4.3. Low Battery Indicator
A red indicator light will illuminate next to the power button when the battery level is low, signaling that the light needs to be recharged.
5. Maintenance
To ensure the longevity and optimal performance of your Knog bike lights, follow these maintenance guidelines:
- Cleaning: Wipe the lights with a damp cloth to remove dirt and debris. Avoid using harsh chemicals or abrasive materials.
- Charging: Recharge the lights regularly, especially after prolonged use or if the low battery indicator is active. Avoid completely draining the battery for extended periods.
- Storage: Store the lights in a cool, dry place when not in use. If storing for a long time, ensure they are partially charged.
- Waterproofing: While the lights are IP67 waterproof, ensure the USB port cover (if applicable) is properly sealed before exposure to water.
6. Troubleshooting
If you encounter any issues with your Knog bike lights, refer to the following common troubleshooting steps:
- Light not turning on: Ensure the battery is charged. Connect to a USB power source and check the charging indicator.
- Light not charging: Verify the USB-A connector is fully inserted into the port. Try a different USB port or power adapter.
- Light flickering or dim: This usually indicates a low battery. Recharge the light.
- Mounting issues: Ensure the correct silicone strap is used for your bike's tube diameter and that the light is securely clipped into the mount.
If problems persist, please contact Knog customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | KNOG |
| Model | Blinder 600 Front, Blinder Square Rear |
| Front Light Brightness | 600 Lumens |
| Rear Light Brightness | 100 Lumens |
| Front Light Runtime (Max) | Up to 120 hours (Eco Flash Mode) |
| Rear Light Runtime (Max) | Up to 60 hours |
| Water Resistance Level | IP67 Waterproof |
| Power Source | Battery Powered (USB Rechargeable) |
| Material | Aluminum (housing) |
| Mounting Type | Handlebar Mount (Front), Seatpost Mount (Rear) |
| Number of Front Light Modes | 6 |
| Number of Rear Light Modes | 8 |
| Item Weight (Set) | 10.4 ounces |
| Included Components | Front Light, Rear Light |
8. Warranty and Support
8.1. Warranty Information
The Knog Blinder 600 Front and Blinder Square Rear Bike Light Set comes with a 2-year warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
8.2. Customer Support
For further assistance, technical support, or warranty inquiries, please visit the official KNOG store or contact their customer service directly.





