1. پیژندنه
This manual provides essential information for the safe and effective use of your DARKBEAM T25 Bike Tail Light. Please read these instructions thoroughly before operation and retain for future reference.
The DARKBEAM T25 is a compact, high-visibility bicycle taillight designed to enhance rider safety during night riding and low-light conditions. It features an LED display for battery status, multiple lighting modes, intelligent braking detection, and a durable, waterproof design.
2. د خوندیتوب معلومات
- Always ensure the taillight is securely mounted and fully charged before each ride.
- د لنډمهاله لید د خرابیدو څخه د مخنیوي لپاره په مستقیم ډول د رڼا بیم ته مه ګورئ.
- Clean the light regularly to maintain optimal visibility. Use a soft, damp ټوکر
- Operating the bicycle taillight does not replace the need for other safety measures, such as wearing reflective clothing or using additional lighting.
- Adhere to all local traffic laws and regulations regarding bicycle lighting.
3. د بسته محتويات
ډاډ ترلاسه کړئ چې ټول توکي ستاسو په کڅوړه کې شتون لري:
- DARKBEAM T25 Bike Tail Light (battery included)
- Mount x 2 (1 Seat bow, 1 Seat tube)
- Tie strap (for fixing the seat bow) x 3
- د USB-C چارج کیبل x 1
- د کارن لارښود x 1
4. محصول ختم شوview
The DARKBEAM T25 features a compact design with an integrated LED display and a single control button.

Figure 1: DARKBEAM T25 Bike Tail Light showing the LED display and USB-C port.
کلیدي ځانګړتیاوې:
- د LED ښودنې سکرین: Shows real-time battery level.
- د USB-C د چارج وړ: اسانه او چټک چارج کول.
- 6 د رڼا طریقې: Various options for visibility.
- IP55 واټر پروف: Designed for use in various weather conditions.
- Intelligent Braking: Automatically increases brightness upon deceleration.
- اتومات خوب/ویښیدل: Conserves battery by entering sleep mode after 30 seconds of inactivity and waking upon vibration.
۱. تنظیم او نصب کول
The DARKBEAM T25 offers versatile mounting options to suit your bicycle setup.

Figure 2: Two primary mounting styles: saddle rail and seat post.
۴.۲. د څوکۍ پوسته نصبول
- Select the appropriate position on your seat post.
- Wrap the silicone strap of the seat post mount around the seat post.
- Hook the strap securely into one of the slots on the mount.
- Insert the taillight into the mount at a 45-degree angle and rotate it 45 degrees to the left or right until it clicks into place.
5.2. Saddle Rail Mounting
- Secure the saddle rail mount to the saddle rails using the provided zip ties. Ensure it is tight and stable.
- Insert the taillight into the mount at a 45-degree angle and rotate it 45 degrees to the left or right until it clicks into place.
Video 1: Demonstration of DARKBEAM Bike Tail Light installation and features.
6. عملیاتي لارښوونې
6.1. بریښنا فعال/بند
- To turn on: Press and hold the power button (located on the side) for approximately 2 seconds.
- To turn off: Press and hold the power button for approximately 2 seconds.
۵.۲. د رڼا طریقې بدلول
Once the light is on, short press the power button to cycle through the 6 available lighting modes:
- Stay On (Constant Light Mode)
- Rapid Flash Mode
- Breathing Flash Mode
- فلش اکر
- د فلکر حالت
- Single Flash Mode
The light features a mode memory function, meaning it will restart in the last used mode when turned on again.

Figure 3: Visual representation of the 6 available lighting modes.
6.3. Intelligent Braking and Sleep Function
- د بریک احساس: In normal mode, the taillight automatically detects rapid deceleration (braking) and increases its brightness to alert vehicles behind you.
- اتومات خوب: If the taillight remains stationary for 30 seconds after being turned on, it will enter a sleep mode to conserve battery.
- اتوماتیک ویښ: The light will automatically wake up from sleep mode upon detecting vibration (movement).

Figure 4: Brake sensor in action, increasing brightness when deceleration is detected.
6.4. د چارج کولو لارښوونې
The DARKBEAM T25 is equipped with a USB-C charging port.
- Locate the USB-C port on the side of the taillight, protected by a waterproof cover.
- Gently open the waterproof cover.
- Connect the provided USB-C cable to the taillight and the other end to any standard USB power source (e.g., power bank, laptop, USB adapter). Ensure the power supply voltage does not exceed 5V 2A.
- د LED ښودنه به د چارج کولو حالت په ګوته کړي.
- د چارج کولو وخت نږدې 2.5 ساعته دی.
- Once fully charged, disconnect the cable and securely close the waterproof cover to maintain IP55 water resistance.

Figure 5: USB-C fast charging with various compatible devices.
7. ساتنه
7.1. پاکول
To clean the taillight, wipe it with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these may damage the device.
7.2. ذخیره کول
When not in use for extended periods, store the taillight in a cool, dry place. It is recommended to charge the battery every 3-6 months to prolong its lifespan.
۳. د اوبو مقاومت
The DARKBEAM T25 has an IP55 water resistance rating, meaning it is protected against dust ingress and low-pressure water jets from any direction. Ensure the USB-C port cover is always securely closed to maintain water resistance.

Figure 6: The taillight is designed to withstand rain and splashes.
8. ستونزه حل کول
- څراغ نه خلاصیږي: ډاډ ترلاسه کړئ چې بیټرۍ چارج شوې ده. د بریښنا تڼۍ د 2 ثانیو لپاره فشار ورکړئ او ونیسئ.
- څراغ نه چارج کیږي: Check the USB-C cable and power source connection. Ensure the charging port is clean and free of debris.
- Light not responding to movement (Auto Wake): Ensure the light is not in sleep mode. If it is, simply move the bike to activate it.
- Light falling off mount: Re-check installation steps to ensure the mount is securely fastened and the light is properly clicked into the mount.
9. مشخصات
| فیچر | مشخصات |
|---|---|
| د ماډل نوم | T25 |
| برانډ | تیاره بیم |
| مواد | پلاستیک |
| د توکي وزن | 24 ګرامه |
| د توکي ابعاد (LxWxH) | 1.26 x 1.18 x 1.26 انچه |
| د بریښنا سرچینه | د بیټرۍ چلول شوی (د USB-C چارج وړ) |
| روښانتیا | 500 Lumens (زیاته) |
| د ترتیباتو شمیر | 6 د ر Lightا حالت |
| د اوبو د مقاومت کچه | IP55 پنروک |
10. تضمین او ملاتړ
The DARKBEAM T25 Bike Tail Light comes with a standard manufacturer's warranty against defects in materials and workmanship. For warranty claims, technical support, or any questions regarding your product, please contact DARKBEAM customer service through the retailer where the product was purchased.





