1. 서론
The CYCPLUS L7 Bike Radar Tail Light is an advanced safety device designed to enhance cycling visibility and awareness. It features precise radar sensing to detect approaching vehicles, intelligent brake sensing, and multiple light modes. With a long-lasting rechargeable battery and IPX6 waterproof rating, it is suitable for various cycling conditions and scenarios, ensuring a safer riding experience.
2. 패키지 내용
설치하기 전에 모든 구성품이 있는지 확인하십시오.
- CYCPLUS L7 Radar Tail Light Main Unit
- 매는 밧줄
- 짧은 고무 스트랩
- 긴 고무 스트랩
- 충전 케이블(USB-C)
- Seat Tube Mount
- 안장 마운트
- 시트포스트 고무 패드 1개
- 시트포스트 고무 패드 2개
- Screwdriver (Hex Key)

Figure 2.1: All components included in the CYCPLUS L7 Radar Tail Light package.
3. 설치
The CYCPLUS L7 offers two primary installation methods: mounting to the seat rail or to the seat post. Ensure the tail light is mounted vertically to the ground for optimal radar performance.
3.1. Mounting to the Seat Rail
- Match the slope of the seat rail mounting bracket base plate to the slope of your bicycle's seat rail.
- Raise one end of the seat rail mounting bracket panel and attach it to the seat rail.
- Interchange the left and right screws, then insert them into the slots. For carbon fiber seat rails, tighten to approximately 4N-m. Over-tightening may damage the seat rail.
- 거치대의 각도를 조절하고 나사를 단단히 조이세요.
- Install the tail light main unit onto the mount. It is recommended to install the lanyard to prevent the tail light from being lost.
- Ensure the base of the tail light remains perpendicular to the ground (90-degree angle) to avoid the radar detecting objects too close or inaccurately.

Figure 3.1: Attaching the seat rail mount.

Figure 3.2: Installing the tail light main unit onto the seat rail mount.
3.2. Mounting to the Seat Post
- Select the appropriate rubber pad (Pad 1 or Pad 2) based on the shape of your bicycle's seat post (e.g., round, aero).
- Attach the selected rubber pad to the seat post mount.
- Secure the rubber strap tightly on one side of the mount and then wrap it around the seat post, securing the other end.
- Install the tail light main unit onto the mount. It is recommended to install the lanyard to prevent the tail light from being lost.
- Ensure the base of the tail light remains perpendicular to the ground (90-degree angle) to avoid the radar detecting objects too close or inaccurately.

Figure 3.3: Choosing the correct seat post pad.

Figure 3.4: Securing the seat post mount.

Figure 3.5: Installing the tail light main unit onto the seat post mount.
4. 사용 설명서
4.1. 전원 켜기/끄기 및 모드 전환
To power on the device, long press the button located on the tail light. To switch between light modes, short press the button. The available modes include:
- Constant Mode 1
- Constant Mode 2
- 깜박임 모드
- 호흡 모드
- Radar Only Mode (via App)
- Off Mode (short press after cycling through all modes)
The device will automatically enter sleep mode after 3 minutes of inactivity and wake up upon movement, conserving battery life.

Figure 4.1: CYCPLUS L7 Tail Light overview with indicator and button.

Figure 4.2: Various light modes available on the L7.
4.2. Connecting to Bike Computer / App
The CYCPLUS L7 supports ANT+ and Bluetooth 5.0 protocols, allowing connection to compatible smartphones, bike computers, and smartwatches that support tail light functions.
- Bike Computer Connection: Refer to your bike computer's manual for sensor pairing. Typically, you will navigate to the 'Sensors' or 'Add Device' menu and select 'Radar' or 'Lights'. The L7 should appear as a discoverable device.
- CYCPLUS APP Connection: Download the official CYCPLUS APP. Open the app and search for the L7 device. Once connected, you can adjust light brightness, switch modes, and enable/disable the radar function. The indicator light on the L7 will show its status: constant on when radar is enabled, slow flash when radar is disabled.

그림 4.3: 다양한 기기와의 폭넓은 호환성.
Video 4.1: This video demonstrates the unboxing, installation process for both seat rail and seat post mounts, how to switch between light modes, and how to connect the L7 to a bike computer and the CYCPLUS mobile application for advanced settings. It provides a comprehensive visual guide for initial setup and operation.
5. 주요 특징
- Excellent Distance & Velocity Monitoring: Detects rear vehicles up to 175 yards (160 meters) at a relative velocity of 6-160 km/h in real-time. Automatically flashes to warn rapidly approaching vehicles.
- Superior Visibility & 40° Detection Angle: Maximizes visibility up to a 270° angle. The 40° detection angle helps detect vehicles at corners or blind spots, providing early alerts.
- 배터리 수명 연장: Equipped with a 2000mAh rechargeable battery, offering up to 36 hours of usage on a full charge. A built-in power indicator lights up red when battery capacity is below 30%.
- 4 Preset Light Modes & IPX6 Waterproof: Features Constant Mode (x2), Blinking Mode, and Breathing Mode. Settings can be modified via the CYCPLUS APP. IPX6 waterproof rating ensures durability in various weather conditions.
- Intelligent Brake Detection & Auto On/Off: Triggers a brake light to notify trailing vehicles during deceleration or sudden braking, reducing collision risk. Enters sleep mode after 3 minutes of inactivity and automatically wakes up upon movement.
- Support ANT+ & Bluetooth 5.0 Protocols: Compatible with smartphones, bike computers, and smartwatches that support tail light functions.

Figure 5.1: The CYCPLUS L7 Radar Tail Light.

Figure 5.2: Visibility and detection range of the L7.

Figure 5.3: Automatic sleep and wake-up feature.
6. 유지관리
- 청소: 부드러운 천으로 장치를 닦으십시오. damp 천. 연마성 세척제나 용매를 사용하지 마십시오.
- 충전 중: Charge the device using the provided USB-C cable. Ensure the charging port is dry before connecting the cable. Avoid overcharging.
- 저장: Store the device in a cool, dry place when not in use. If storing for an extended period, charge the battery to approximately 50% every few months to maintain battery health.
- 방수 기능: The device has an IPX6 waterproof rating, meaning it is protected against high-pressure water jets from any direction. However, it is not designed for submersion. Ensure the charging port cover is securely closed during use in wet conditions.
7. 문제 해결
| 문제 | 가능한 원인 | 해결책 |
|---|---|---|
| 장치의 전원이 켜지지 않습니다. | 배터리가 부족합니다. 기기가 고장났습니다. | 기기를 완전히 충전하십시오. 그래도 반응이 없으면 고객 지원팀에 문의하십시오. |
| Radar not detecting vehicles or inaccurate readings. | Incorrect mounting angle; obstruction; environmental factors (heavy rain, fog). | Ensure the tail light is mounted vertically (90 degrees to the ground). Check for obstructions. Radar performance may be affected by extreme weather. |
| Cannot connect to bike computer or app. | Bluetooth/ANT+ off; device not in pairing mode; interference. | Ensure Bluetooth/ANT+ is enabled on your device. Restart the tail light and try pairing again. Move closer to the tail light. Check for firmware updates for your bike computer/app. |
| Light modes not switching. | Button malfunction; software glitch. | Try long pressing to power off and then on again. If the issue persists, contact support. |
| 배터리 수명이 예상보다 짧습니다. | Frequent use of high-brightness modes; aging battery. | Adjust brightness settings via the app. Ensure full charge cycles. Battery capacity naturally degrades over time. |
8. 사양
| 특징 | 세부 사항 |
|---|---|
| 제품 이름 | 레이더 테일 라이트 L7 |
| 제품 크기 | 76.5 x 37 x 25mm |
| 제품 무게 | 67그램 |
| 감지 거리 | 최대 160미터(175야드) |
| 감지 각도 | 수평 ±20°, 수직 ±5° |
| Detectable Relative Velocity | 3-160km/h |
| 무선 프로토콜 | ANT+ / BLE 5.0 |
| 방수 등급 | IPX6 |
| 배터리 | 2000mAh 3.7V 7.4Wh Lithium Battery |
| 충전 포트 | 타입-C 5V 1A |
| 작동 온도 | 0~50도 |
| 보관 온도 | -10~75°C |
| 배터리 수명(최대) | 최대 36시간 |

Figure 8.1: Detailed specifications of the L7 Radar Tail Light.
9. 보증 및 지원
The CYCPLUS L7 Radar Tail Light comes with a 1년 한정 보증 구매일로부터. 본 보증은 정상적인 사용 중 제조상의 결함 및 재료상의 결함에 적용됩니다.
For technical support, warranty claims, or any inquiries regarding your product, please contact CYCPLUS customer service through the official website or the contact information provided in your product packaging. Please have your purchase receipt and product model number (L7) ready when contacting support.





