1. Introduction
This manual provides detailed instructions for the proper installation, operation, and maintenance of your Magicshine ALLTY 1200U bike light. Please read this manual thoroughly before using the product to ensure optimal performance and safety.
Key Features:
- 1200 Lumen Output: High-power LED for increased visibility during night riding.
- Anti-glare Lens: Designed to optimize visibility for pedestrians and vehicles.
- Underneath Mounted Design: GoPro-style quick-release mechanism with a lightweight out-front mount for a clean cockpit.
- FTR LightSync Control: Allows for app and remote control, enabling customized lighting modes.
- 4200mAh USB-C Rechargeable Battery: Offers up to 12 hours of runtime and can charge other devices.
- IPX7 Waterproof Rating: Ensures reliability in various weather conditions, including heavy rain and muddy paths.
- 5 Lighting Modes: Multiple brightness levels and flash modes with memory function.
2. Package Contents
Verify that all items are present in your package:
- ALLTY 1200U Headlight (x1)
- Handlebar Out-Front Mount (x1)
- MJ-6558 Remote Control (x1, includes strap)
- Metal GoPro Adapter (x1)
- Nylon Shim (28mm/32mm/35mm) (x3)
- Wahoo Mount (x1)
- Screw (x2)
- 2mm Hex Key (x1)
- 3mm Hex Key (x1)
- USB-C Charging Cable (x1)
- User Manual (x1)
3. Setup and Installation
3.1 Mounting the Light
The ALLTY 1200U features an underneath mounted design using a GoPro-style quick-release mechanism and an out-front mount. This design helps keep your bike's cockpit clear and provides space for other accessories like a bike computer.
- Attach the Out-Front Mount: Secure the handlebar out-front mount to your bicycle's handlebars using the provided screws and hex keys. Choose the appropriate nylon shim for a snug fit (28mm, 32mm, or 35mm).
- Install the GoPro Adapter: If not pre-installed, attach the metal GoPro adapter to the underside of the out-front mount.
- Attach the Light: Slide the ALLTY 1200U headlight onto the GoPro-style quick-release mechanism on the mount until it clicks securely into place. Ensure it is firmly attached.
- Optional: Wahoo Mount: If you use a Wahoo bike computer, you can attach the Wahoo mount to the top of the out-front mount.

Image: Hands adjusting the Magicshine ALLTY 1200U bike light mounted underneath the handlebars.
3.2 Remote Control Installation
The MJ-6558 remote control can be mounted on your handlebars for easy access. Use the included strap to secure it in a convenient location.
4. Operating Instructions
4.1 Powering On/Off and Mode Selection
The ALLTY 1200U features a single button for power and mode changes.
- Power On: Press and hold the power button for approximately 1 second.
- Change Modes: While the light is on, click the power button to cycle through the five available lighting modes. The light has a memory function and will return to the last selected mode when turned on again.
- Power Off: Press and hold the power button for approximately 1 second.
4.2 Lighting Modes and Runtimes
The ALLTY 1200U offers five distinct lighting modes:
| Mode | Brightness | Runtime |
|---|---|---|
| Low (Constant) | 300 Lumens | 12:00 hours |
| Medium (Constant) | 600 Lumens | 04:50 hours |
| High (Constant) | 1200 Lumens | 02:00 hours |
| Night Flash | 300/1200 Lumens | 06:40 hours |
| Day Flash | 1200 Lumens | 11:30 hours |

Image: Display showing the Magicshine app interface and a table of lighting modes with corresponding runtimes.
4.3 FTR LightSync Control
The ALLTY 1200U supports FTR LightSync control technology, allowing synchronization with compatible Magicshine tail lights (e.g., SEEMEE 50MAG/50 V2.0) and control via the MJ-6558 remote or a smartphone application.
- Remote Control Pairing: To pair the MJ-6558 remote, ensure it is charged via USB-C. Press both buttons on the remote simultaneously until it flashes. Turn on the ALLTY 1200U light; it will flash blue to confirm pairing. Press any button on the remote to complete the process.
- App Control: Download the Magicshine app from your device's app store. The app allows for customization of lighting modes and settings.

Image: Cyclist riding with the ALLTY 1200U light, demonstrating FTR LightSync control with a remote on the handlebars.
4.4 Battery Indicator
The power button on the light unit also serves as a battery indicator:
- Green: 21% - 100% battery remaining
- Red: 11% - 20% battery remaining
- Flashing Red: 1% - 10% battery remaining (low power mode will activate automatically to save power)

Image: Close-up of the ALLTY 1200U light showing the battery indicator and lock protection status.
5. Maintenance
5.1 Charging the Battery
The ALLTY 1200U is equipped with a 4200mAh battery and charges via a USB-C port.
- Locate the USB-C charging port on the light unit. It is protected by a rubber cover.
- Gently open the rubber cover to expose the port.
- Connect the provided USB-C charging cable to the light and to a USB power source (e.g., wall adapter, computer USB port).
- A full charge typically takes less than 2.5 hours. The battery indicator will show charging status.
- After charging, ensure the rubber cover is securely closed to maintain the IPX7 waterproof rating.
The light can also function as a power bank to charge other devices like cycling computers or phones.

Image: Hands opening the USB-C charging port cover on the Magicshine ALLTY 1200U bike light.
5.2 Cleaning and Storage
- Clean the light unit with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials.
- Ensure the lens is clean for optimal light output.
- Store the light in a cool, dry place when not in use.
- For long-term storage, charge the battery to approximately 50% every 3-6 months to prolong battery life.
5.3 Waterproofing
The ALLTY 1200U has an IPX7 waterproof rating, meaning it can withstand immersion in water up to 1 meter for 30 minutes. This protects it from heavy rain and splashes. Always ensure the USB-C port cover is fully sealed to maintain this rating.

Image: The Magicshine ALLTY 1200U bike light submerged in water, illustrating its IPX7 waterproof rating.
6. Troubleshooting
If you encounter issues with your ALLTY 1200U bike light, please refer to the following common problems and solutions:
- Light does not turn on:
- Ensure the battery is charged. Connect the light to a USB-C charger.
- Press and hold the power button for at least 1 second to turn on.
- Remote control not working:
- Ensure the remote control is charged.
- Re-attempt the pairing process as described in Section 4.3.
- Verify that the remote is within effective range of the light.
- App connectivity issues:
- Ensure Bluetooth is enabled on your smartphone.
- Update the Magicshine app to the latest version.
- Restart both the light and your smartphone.
- Some users have reported issues with app activation; ensure you have a stable internet connection when attempting to log in or activate the app.
- Light output is dim:
- Check the battery indicator; a low battery will reduce brightness.
- Ensure the lens is clean and free from dirt or obstructions.
- Verify the light is not in a lower brightness mode.
If these steps do not resolve the issue, please contact Magicshine customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Magicshine |
| Model Name | ALLTY 1200U Underneath Mounted Bike Lights |
| Brightness | 1200 Lumens (Max) |
| Number of Settings | 5 (3 Constant, 2 Flash) |
| Power Source | USB C Rechargeable Battery Powered |
| Battery Capacity | 4200mAh |
| Charging Time | Less than 2.5 hours |
| Max Runtime | Up to 12 hours (Low mode) |
| Material | Aluminum |
| Water Resistance Level | IPX7 (Waterproof) |
| Mounting Type | Handlebar Mount, Underneath Mount |
| Product Dimensions | 4.21"L x 1.22"W x 1.22"H |
| Color | Black |
8. Warranty Information
Specific warranty terms and conditions for the Magicshine ALLTY 1200U bike light are typically provided at the point of purchase or on the manufacturer's official website. Please retain your proof of purchase for warranty claims. For detailed warranty information, contact Magicshine directly or refer to the documentation included with your product.
9. Support
For further assistance, technical support, or inquiries regarding your Magicshine ALLTY 1200U bike light, please contact the Magicshine after-sales support team.
- Email Support: amazon@magicshine.com
- Mobile App: Download the Magicshine app for additional features and control. Search for "Magicshine" in the Google Play Store (Android) or the Apple App Store (iOS).





