1. Киришүү
Thank you for choosing the GACIRON W12B Smart Brake Warning Bicycle Cargo Rack Light. This manual provides essential information for the safe and efficient use of your new bicycle light. Please read it thoroughly before installation and operation, and keep it for future reference.
The GACIRON W12B is designed to enhance cycling safety with its ultra-high brightness, smart brake warning, and versatile mounting options. Its durable, waterproof design ensures reliable performance in various riding conditions.

Figure 1: GACIRON W12B Bicycle Cargo Rack Light in operation.
2. Продукциянын өзгөчөлүктөрү
- Smart Brake Warning: Automatically switches to 60 Lumens maximum brightness for 3 seconds upon detecting brake motion, then returns to the previous working mode.
- Кыймыл сенсору: Enters a smart working mode by detecting cycling status and goes into sleep mode after 120 seconds of no motion.
- Ultra-High Brightness: 60 Lumens maximum brightness (in brake mode) provides over 1000m found distance for enhanced safety.
- Узак иштөө убактысы: Equipped with a 1200mAh built-in lithium battery, offering up to 100 hours of operation.
- Type-C кайра заряддалуучу: Conveniently rechargeable via Type-C port using an adapter, laptop, or power bank.
- Built-in Reflectors: Enhances visibility by reflecting light from other vehicles even when the light is off.
- IPX6 Суу өткөрбөйт: Provides all-weather reliability, holding up to various riding conditions.
- Ар тараптуу монтаждоо: Supports both saddle bracket and cargo rack mounting options.
- Бир нече иштөө режимдери: Six distinct lighting modes to suit different requirements.

Figure 2: Smart Working and Intelligent Brake Mode explained.

Figure 3: IPX6 Waterproof rating for all-weather reliability.
3. Пакеттин мазмуну
Сураныч, бардык буюмдардын бар экенин жана бузулбаганын текшерүү үчүн пакетти текшериңиз:
- GACIRON W12B Bicycle Cargo Rack Light
- User Manual
- Rack монтаждык кронштейн
- Ээр кашаа
- Mounting Screws and Gaskets
- Hex Wrench
- USB Type-C кубаттоочу кабель

Figure 4: GACIRON W12B Product List.
4. Орнотуу жана орнотуу
The GACIRON W12B light supports two main mounting options: Bicycle Cargo Rack Mounting and Saddle Bracket Mounting. Ensure your bike's rack or saddle is compatible with the provided brackets.

Figure 5: Compatible mounting dimensions for rack and saddle.
4.1. Rack Mounting Option
- Take out the gasket and place it into the screw.
- Align the screw hole of the rack with the bracket, then tighten with a nut on the backside.
- Insert the W12B tail light into the bracket from top to bottom until you hear a "clip" sound.
- Verify the installation is secure.

Figure 6: Rack Mounting Installation Steps.
4.2. Saddle Bracket Mounting
- Place the top cover of the saddle bracket into the bottom of the saddle.
- Place the bottom cover of the saddle bracket to secure it.
- Connect the remaining part of the saddle bracket.
- Place the nut, align it with the screw hole, and tighten it with the hex wrench.
- Insert the W12B light from right to left into the saddle bracket until you hear a "click" sound.
- Verify the installation is secure.

Figure 7: Saddle Bracket Mounting Installation Steps.
5. Иштөө нускамалары
5.1. Күйгүзүү/өчүрүү
- Күйгүзүү: Кубат баскычын 0.7 секунд басып туруңуз.
- Өчүрүү: Кубат баскычын 0.7 секунд басып туруңуз.
5.2. Режимдерди өзгөртүү
Once the light is on, short press the power button to cycle through the different working modes.

Figure 8: Working Modes and Running Times.
| Mode | Жарыктык | Болжолдуу иштөө убактысы |
|---|---|---|
| Тормоз режими | 60 Люмен (максимум) | Activates for 3 seconds upon braking |
| Күндүзгү жарк | 30 Lumens | 14 саат |
| Туруктуу | 15 Lumens | 13 саат |
| Flash | 15 Lumens | 55 саат |
| Туруктуу | 5 Lumens | 26 саат |
| Flash | 5 Lumens | 100 саат |
5.3. Smart Working Mode
After turning on the light, it enters smart working mode by detecting cycling status. If no motion is detected for 120 seconds, the light will enter sleep mode to conserve battery.
5.4. Intelligent Brake Mode
When brake motion is detected in any mode, the light will automatically increase to 60 Lumens maximum brightness for 3 seconds to provide an effective warning to others. It will then revert to the previously selected working mode.
Video 1: Demonstration of the smart brake light function.
6. Батареяны заряддоо
The GACIRON W12B features a built-in 1200mAh lithium battery and is rechargeable via a Type-C port.
- Connect the provided USB Type-C cable to the charging port on the light.
- Connect the other end of the cable to a compatible USB power source (e.g., wall adapter, laptop, power bank).
- The charging indicator light will show the charging status (refer to the light's specific indicator behavior, usually red for charging, green/off for fully charged).
- A full charge provides up to 100 hours of running time depending on the selected mode.

Figure 9: Type-C Rechargeable feature.
7. Техникалык тейлөө
- Тазалоо: Жарыкты жумшак менен сүртүңүз, гamp кездеме. Абразивдүү тазалагычтарды же эриткичтерди колдонбоңуз.
- Сактагыч: Store the light in a cool, dry place when not in use. If storing for extended periods, charge the battery periodically (e.g., every 3-6 months) to maintain battery health.
- Суу каршылык: While IPX6 waterproof, avoid prolonged submersion in water. Ensure the charging port cover is securely closed before riding in wet conditions.
- Батареяга кам көрүү: Do not attempt to replace the built-in battery. Dispose of the product responsibly according to local regulations when it reaches its end of life.
8. Кыйынчылыктарды
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Жарык күйбөйт | Батарея түгөндү | Берилген USB-C кабелин колдонуп, жарыкты заряддаңыз. |
| Жарык күтүлбөгөн жерден өчөт | Low battery or entered sleep mode | Recharge the battery. If in smart working mode, ensure continuous motion or switch to a steady mode. |
| Brake warning not activating | Сенсордун тоскоол болушу же туура эмес иштеши | Ensure the light is securely mounted and not obstructed. If the issue persists, contact support. |
| Жарык заряддалбай жатат | Faulty cable, power source, or charging port | Башка USB-C кабелин жана кубат булагын колдонуп көрүңүз. Кубаттоо порту таза жана таштандылардан таза экенин текшериңиз. |
9. Техникалык шарттар
| Өзгөчөлүк | Деталь |
|---|---|
| Модель номери | W12BR Bicycle Cargo Rack Light |
| LED түрү | COB |
| Max Brightness | 60 Lumens (Brake Mode) |
| Viewбурч | > 220 degrees |
| Жарык аралык | > 1000м |
| Батарея | Built-in 1200mAh Lithium |
| Максималдуу иштөө убактысы | 100 саат |
| Төлөм киргизүү | 5V/1A (С түрү) |
| Салмагы | 73г |
| Өлчөмү | 102*31*32мм |
| Суу өткөрбөйт рейтинги | IPX6 |
| Акылдуу сезүү | Ооба |
| Сертификация | CE, FCC, RoHS |

Figure 10: Detailed Product Specifications.
10. Колдонуучунун кеңештери
- For optimal visibility, especially during daytime, consider using the 'Daytime Flash' mode.
- Always ensure the light is fully charged before long rides to take advantage of its extended battery life.
- Periodically check the mounting brackets for tightness to prevent the light from dislodging during rides.
- The built-in reflectors provide passive safety even when the light is off, but active lighting modes are recommended for all low-light conditions.
11. Кепилдик жана колдоо
GACIRON products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the official GACIRON webсайтка же ыйгарым укуктуу дилериңизге кайрылыңыз. Сатып алганыңыздын далили катары сатып алуу дүмүрчөгүңүздү сактаңыз.
