1. Introduction
The Ledlenser iF4R Music is a compact, rechargeable high-power LED professional light that integrates a Bluetooth speaker. This innovative device allows you to illuminate your workspace while simultaneously enjoying music, podcasts, or radio from your smartphone. Designed for portability and hands-free operation, the iF4R Music delivers up to 2,500 lumens across five brightness levels, adapting to various job requirements. It features a strong magnetic base for secure attachment to metal surfaces and a flexible design for precise light positioning. Charging is simplified with its magnetic charge system.

Figure 1: Front view of the Ledlenser iF4R Music, highlighting the LED and integrated speaker.
2. Product Features
- Integrated Bluetooth Speaker: Enjoy audio from your smartphone directly through the built-in speaker.
- Adjustable Brightness: Offers 5 brightness modes, ranging from 200 to 2,500 lumens, with run times from 1.5 to 15 hours.
- Magnetic Charge System: Convenient and easy recharging via the Ledlenser Magnetic Charge System.
- Strong Magnetic Handle: Securely attaches the iF4R Music to metal surfaces for hands-free operation.
- Durable Construction: Built with metal components for robust performance.
3. Components Included
The Ledlenser iF4R Music package includes the following items:
- Ledlenser iF4R Music Light Unit
- Magnetic Charger
- USB Cable

Figure 2: Top view of the iF4R Music, illustrating the control layout and battery status indicators.
4. Setup
Before first use, ensure the device is fully charged. The iF4R Music is designed for versatile placement.
- Initial Charge: Connect the magnetic charger to the charging port on the device and plug the USB cable into a power source. Allow the device to charge until the battery indicators show full capacity.
- Placement:
- Freestanding: Place the iF4R Music on a flat, stable surface.
- Magnetic Attachment: Utilize the strong magnetic base to attach the light securely to any suitable metal surface. This allows for hands-free illumination and flexible positioning.

Figure 3: The iF4R Music demonstrating its magnetic attachment capability on a metal surface.
5. Operating Instructions
5.1. Light Operation
The iF4R Music offers multiple brightness settings to suit various lighting needs.
- Power On/Off: Press the power button (typically the central button on the control panel) to turn the light on or off.
- Adjust Brightness: While the light is on, press the brightness adjustment buttons (often marked '+' and '-') to cycle through the 5 available brightness levels (200, 500, 1000, 2000, 2500 lumens).
5.2. Bluetooth Music Playback
Connect your smartphone or other Bluetooth-enabled device to the iF4R Music to play audio.
- Activate Bluetooth: Ensure the iF4R Music is powered on. Press and hold the Bluetooth button (usually indicated by a Bluetooth symbol) until the Bluetooth indicator light begins to flash, indicating pairing mode.
- Pairing: On your smartphone or audio device, navigate to the Bluetooth settings. Select "iF4R Music" from the list of available devices. Once connected, the Bluetooth indicator light on the iF4R Music will become solid.
- Playback Control: Use your connected device to control music playback (play, pause, skip tracks, volume). The iF4R Music may also have basic playback controls on its panel.

Figure 4: Demonstrating Bluetooth connectivity between a smartphone and the iF4R Music.

Figure 5: Close-up of the iF4R Music's control panel, detailing the buttons for operation.
6. Charging
The iF4R Music utilizes a magnetic charge system for convenient recharging.
- Connection: Align the magnetic charger with the charging contacts on the device. The magnetic connection will secure the charger in place.
- Power Source: Connect the USB cable from the magnetic charger to a standard USB power adapter (not included) or a computer USB port.
- Charging Indicators: The battery indicator lights on the device will illuminate to show the charging progress. All lights solid typically indicate a full charge.
- Charging Time: Charging time varies depending on the power source and remaining battery level.
7. Maintenance
To ensure the longevity and optimal performance of your Ledlenser iF4R Music, follow these maintenance guidelines:
- Cleaning: Wipe the device with a soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure the charging contacts are clean and free of debris.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, charge the battery periodically to maintain its health.
- Battery Care: Avoid fully discharging the battery frequently. Recharge the device when the battery level is low.
8. Troubleshooting
This section addresses common issues you might encounter with your iF4R Music.
| Problem | Solution |
|---|---|
| Light does not turn on. |
|
| Bluetooth connection fails. |
|
| Light output is dim. |
|
| No sound from speaker. |
|
9. Specifications
Detailed technical specifications for the Ledlenser iF4R Music.
| Attribute | Value |
|---|---|
| Brand | Ledlenser |
| Model Number | 502172 |
| Item Weight | 2.93 Pounds (1.33 kg) |
| Product Dimensions | 12.09 x 4.65 x 2.05 inches (30.71 x 11.81 x 5.21 cm) |
| Lamp Type | LED |
| Light Source Type | LED |
| Number of Light Sources | 1 |
| Power Source | Battery Powered |
| Connectivity Technology | Bluetooth |
| Connectivity Protocol | Bluetooth |
| Control Method | App (via Bluetooth) |
| Switch Type | Magnetic |
| Material | Metal |
| Base Material | Metal |
| Shade Material | Metal |
| Color | Black |
| Special Feature | Rechargeable |
| Is Cordless? | Yes |
| Is Waterproof | FALSE (Not Water Resistant) |
| Recommended Uses | For Indoor and Outdoor Activities, For Work Spotlight |
| Indoor/Outdoor Usage | Indoor |
| Mounting Type | Tabletop |
| Installation Type | Freestanding |
10. Warranty and Support
Ledlenser stands behind the craftsmanship of its products. The iF4R Music comes with a 7-Year Guarantee. If your purchase has a defect in material or workmanship, Ledlenser will repair or replace it, at their discretion, with a product of equal or greater value.
For further support or inquiries, please visit the official Ledlenser website or contact their customer service.
You can also visit the Ledlenser Store on Amazon for more product information and accessories.







