K01S Smart Brake-Sensing Bicycle Rear Light
Compact bicycle light for cycling brands, distributors and importers.
The K01S is a compact smart bicycle rear light designed for cycling brands and distributors seeking an upgraded safety-focused lighting option.
Compared with the standard K01R, the K01S adds automatic brake warning and intelligent wake and sleep functions while maintaining the same exterior design.
It delivers up to 40 lumens in steady mode and increases brightness to 60 lumens during brake warning.
The removable battery design supports maintenance, while the shared K01 family appearance makes it suitable for coordinated lighting collections.
Key Features
40 LM maximum steady output.
60 LM automatic brake warning.
Brake warning lasts approximately 3 seconds.
Automatic wake and sleep functions.
Automatic sleep after approximately 45 seconds of inactivity in darkness.
Removable battery design.
Up to 36 hours of Eco-Flash runtime, excluding additional power consumption from brake warning events.
Smart Mode — How It Works
Auto Wake
When the rider is cycling in dark conditions, the light automatically activates in Smart Mode.
Auto Sleep — Daylight
When cycling in bright conditions, the light automatically enters sleep mode.
Auto Sleep — Stationary
When the bicycle remains stationary in dark conditions, the light automatically enters sleep mode after approximately 45 seconds.
Automatic Brake Warning
When the rider decelerates, the K01S automatically increases its brightness to 60 lumens for approximately 3 seconds to provide a more noticeable warning to following road users.
Lighting Modes & Runtime
| Mode | Brightness | Runtime |
|---|---|---|
| High Steady | 40 LM | 4 h |
| Medium Steady | 25 LM | 7 h 30 min |
| Breathing Flash | — | 9 h |
| Fast Flash | 40 LM | 8 h 20 min |
| Slow Flash | 25 LM | 14 h 30 min |
| Eco-Flash | 25 LM | 36 h |
| Brake Warning | 60 LM | Approx. 3 seconds |
Lighting-mode runtime follows the confirmed product specification.
One Design, Two Rear Light Options
Choose between the K01R standard rear light and the K01S smart brake-sensing version. Both share the same compact exterior design, allowing cycling brands and distributors to build different product tiers within one coordinated lighting range.
| Feature | K01R | K01S |
|---|---|---|
| Product Type | Standard Rear Light | Smart Brake-Sensing Rear Light |
| Light Color | Red | Red |
| Exterior Design | Shared K01 Design | Shared K01 Design |
| Maximum Steady Output | 20 LM | 40 LM |
| Automatic Brake Warning | No | Yes |
| Brake Warning Output | Not Applicable | 60 LM |
| Brake Warning Duration | Not Applicable | Approx. 3 Seconds |
| Maximum Runtime | 51 Hours | 36 Hours |
| Maximum Runtime Mode | Eco-Flash | Eco-Flash |
| Removable Battery | Yes | Yes |
| Battery Removal | Requires Tools | Requires Tools |
| Individual Sales | Available | Available |
| Compatible Front Light Set | K01 + K01R | K01 + K01S |
Removable Battery Design for Easier Maintenance
The K01 lighting series features a removable battery design intended to support product maintenance and battery replacement.
Battery removal requires opening the light housing with appropriate tools and disconnecting the battery connector before removing the battery.
This design provides an additional maintenance option compared with a permanently sealed battery assembly.
Wholesale, OEM & Private Label Opportunities
The K01S gives bicycle brands an opportunity to introduce a higher-feature rear light without changing the exterior design of their standard K01R range.
Ridingoutdoor supports bicycle brands, distributors and importers with product sourcing, supplier coordination, customization and quality control.
For initial market testing, small orders of standard, non-customized products can be discussed without a fixed MOQ.
Logo and custom retail packaging projects generally require a higher order quantity, typically around 1,000 pieces, depending on the model and customization requirements.
Our team can assist with product selection, sample arrangements, packaging coordination and pre-shipment inspection.
Frequently Asked Questions
Is the battery removable?
Yes. The K01 series features a removable battery design. Battery removal requires tools and opening the housing.
Can the battery be removed without tools?
Battery removal requires tools. Follow the appropriate disassembly procedure and disconnect the battery connector before removing the battery.
Can the battery be replaced?
The battery assembly is designed to be removable. Replacement battery availability and compatibility should be confirmed for the specific model and order.
Does the removable battery design meet EU battery regulations?
The removable battery design is a product feature. Compliance with applicable EU battery requirements must be assessed separately based on the final product configuration and supporting documentation.
