Introduction
This manual provides instructions for the safe and efficient use of your EMOS P4538 Rechargeable LED Work Light. Please read this manual carefully before first use and keep it for future reference.
Safety Information
- Do not look directly into the LED light.
- Keep out of reach of children.
- Do not disassemble or modify the device.
- Use only the provided USB-C cable for charging.
- Do not expose to extreme temperatures or direct sunlight.
- Dispose of the battery according to local regulations.
Package Contents
- 1 x EMOS P4538 Rechargeable LED Work Light
- 1 x USB-C Charging Cable
- User Manual
Product Overview
Familiarize yourself with the components of your EMOS P4538 work light.

This image illustrates the key features of the EMOS P4538 work light, including the main LED strip, the SMD LED, the USB-C charging port, the battery indicator lights, the power/boost button, and the integrated magnets on the back.

This image provides a detailed view of the USB-C charging port and the LED battery indicator, which shows the current charge level of the device.
Charging the Battery
- Locate the USB-C charging port on the side of the work light.
- Connect the provided USB-C cable to the work light and the other end to a compatible USB power adapter (not included).
- The LED battery indicator will show the charging status. When all four segments are lit, the battery is fully charged.
- A full charge takes approximately 3-6 hours.
The work light features overcharge and over-discharge protection for battery longevity.
Operation
The EMOS P4538 offers three light modes and a boost function.

This image summarizes the key operational specifications: 700 lumens maximum brightness, up to 6 hours runtime, 45 meters beam range, and its rechargeable nature with three distinct light modes.
Turning On/Off and Switching Modes
- Press the power button once to turn on the light.
- Subsequent presses will cycle through the light modes:
- LED Light (Front): 50 lm, 45 m beam range.
- SMD LED (Floodlight): 350 lm, 30 m beam range.
- To turn off the light, press and hold the power button for 3 seconds.
Boost Function
The Boost function provides maximum light output for a short period.
- While the light is on (in any mode), press the power button again to activate the Boost function.
- The light output will increase to 700 lm for 30 seconds.
- After 30 seconds, the light will return to its previous mode and brightness.

This image shows the EMOS P4538 work light in action, providing bright illumination inside an electrical panel, highlighting its utility for detailed work in dark environments.
Mounting and Placement
The EMOS P4538 features two integrated magnets on its back for versatile mounting options.
- Attach the work light to any metallic surface, such as car hoods, metal shelves, or machinery.
- The ergonomic rubberized handle also provides a comfortable grip for handheld use.
Maintenance
- Clean the work light with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Ensure the USB-C port cover is closed when not charging to prevent dust and moisture ingress.
- Store the device in a cool, dry place when not in use.
- Recharge the battery periodically if the device is stored for extended periods to maintain battery health.
Troubleshooting
Light does not turn on:
- Check the battery level using the LED indicator. Recharge if necessary.
- Ensure the power button is pressed correctly (short press for on, long press for off).
Light output is dim:
- The battery may be low. Recharge the device.
- Ensure the correct light mode is selected.
Device not charging:
- Verify the USB-C cable is securely connected to both the light and the power adapter.
- Try a different USB-C cable or power adapter.
- Ensure the power adapter is functional.
Specifications
| Feature | Detail |
|---|---|
| Model | P4538 |
| Light Source | LED, SMD LED |
| Max. Luminous Flux | 700 lm (Boost mode) |
| Beam Range | Up to 45 m |
| Battery Type | 1200 mAh Li-ion (3.7 V) |
| Battery Life | 3-6 hours (depending on mode) |
| Charging Port | USB-C |
| Weight | 108 g |
| Dimensions | 240 mm x 35 mm x 12 mm (approx.) |
| Features | 3 Light Modes, Boost Function, 2x Magnets, Battery Indicator |

This image provides a visual representation of the EMOS P4538 work light's dimensions, indicating its length, width, and thickness for reference.
Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or visit the official EMOS website.





